Radio direction-finding and radio navigation and determining distance or velocity by use of radio waves and locating or presence-detecting by use of the reflection or reradiation of radio waves and analogous arrangements using other waves (G01S)

G   Physics(391163)
G01   easuring; testing(233827)
G01S              Radio direction-finding; radio navigation; determining distance or velocity by use of radio waves; locating or presence-detecting by use of the reflection or reradiation of radio waves; analogous arrangements using other waves(6394)

Radar location method with carrier frequency tuning from pulse to pulse // 2628526
FIELD: radio engineering, communication.SUBSTANCE: radar location method with carrier frequency tuning from pulse to pulse consists in obtaining a signal of carrier frequency by direct heterodyning method of radio pulses of a fixed frequency up in frequency by the frequency value of the heterodyne signal and receiving the reflected signal by return heterodyning method by shifting it down in frequency, followed by filtering of the reflected signal at frequency of radio pulses of a fixed frequency by a frequency-selective device. Carrier frequency tuning is carried out by changing the frequency of the heterodyne signal, in case of direct heterodyning, the response of the frequency-selective device to the ultrashort pulse action is used as the fixed frequency radio pulses, and after return heterodyning, the filtering of the reflected signal is performed by the same frequency-selective device. Direct and return heterodyning are performed by the same device.EFFECT: ensuring the optimal reception of reflected signals during carrier frequency tuning of the emitted radio pulses from pulse to pulse without requiring long-term stability of the frequency parameters of the incoming devices and with a simpler practical implementation.2 cl, 4 dwg

Device for side lamps suppression at pulsed compression of symmetrically crossed multiphase codes (versions) // 2628475
FIELD: radio engineering, communication.SUBSTANCE: suppression of side lobes occurring during the compression process is performed, which provides an increase in the number of multiphase N-length codes, for all values of time shifts (counts), excluding two ±N, in which the relative level of the side lobes is in the range from -20 lgN -6 to -20 lgN -8 dB due to the use of symmetrically truncated codes formed by the consecutive removal of an equal number of first and last symbols of codes of a longer length. The width of the main lobe at -6 dB is 2τ, at the PSL level lies in the range 3÷4τ, and the signal-to-noise loss at the device output is -1.7 dB. The sidelobe suppression device for pulse compression of symmetrically truncated multiphase N-length codes comprises an input first digital filter with FIR of order N-1 and a digital correction signal generator consisting of a series-connected code converter into a complex conjugate code and a second digital filter with finite impulse response of order N+1, whose output is connected to the first input of the adder, and the output of the first digital filter is connected to a delay line for a duration of one to and the first input of the subtracter, the second input of which is connected to the output of the delay line, and the output is connected to the second input of the adder.EFFECT: improving the quality of signal compression.3 cl, 4 dwg

Device for processing phasonicularized radar signals // 2628405
FIELD: radio engineering, communication.SUBSTANCE: method is implemented by introducing a Doppler accumulation unit, a master signal generator, and (N-1) sub-optimal filters (where N is the number of Doppler channels) and performing phase-manipulated signal compression, taking into account the Doppler frequency shift.EFFECT: preservation of the performance characteristics of the compression of phase-shifted radar signals in the presence of a Doppler frequency shift signal reflected from moving aircraft.5 dwg
ethod and device of azimuth-elevation indication in optical-location systems // 2628301
FIELD: physics.SUBSTANCE: method of azimuth-elevation indication in optical-location systems contains the formation of a combined optical beam from the probing and reference laser radiation, the direction of the probing and control laser beams, the separation and summation of the probing and reflected laser beam from the object and the reference beam. In this case, the probing beam is diaphragmed by the radial-slit diaphragm of the probing mirror. The formation of a shadow mark in the probing beam and a light mark passing through the radial-slit diaphragm is performed. The light mark is projected onto the surface of the limb.EFFECT: providing a direct visual indication of the probing radiation direction along the azimuth and elevation angle.3 cl, 1 dwg
Automatic activation device for "man overboard" alerting // 2628026
FIELD: rescue work.SUBSTANCE: automatic activation device for "man overboard" alerting contains a life jacket and a "man overboard" warning device. The automatic activation device is additionally equipped with a transceiver, that is made using ZigBee technology and is in constant interaction with a ZigBee sensor on the life jacket belt, and an RFID reader with an autonomous power supply, built into it. The RFID reader and the autonomous power supply are located at the top of the life jacket in the immediate proximity of the "man overboard" warning device with a built-in passive RFID tag that communicates with the RFID reader in the absence of a permanent radio contact with the ZigBee sensor.EFFECT: increase of autonomy and reliability of work.1 dwg

ethod of object detection and measurement of its parameters // 2627977
FIELD: measuring equipment.SUBSTANCE: method for measuring distance comprises sounding signal emission, echo signal reception, discretisation of the received echo signal time realisation, gathering of time realisation of discretised countings with duration T, determination of spectrum of the gathered time realisation, successive gathering of next time realisations with duration T is carried out, shifted by time T/4, the spectrum of the gathered time realisation is determined, the threshold is determiend, successive gatherings are carried out for all the time of emission-reception, correlation coefficient is determined between all successive spectra, and when the coefficient is exceeded more than by 0.5, the successive spectra are memorized with the correlation coefficient of more than 0.5, two successive spectra with maximum correaltion coefficient are chosen, frequencies which exceeded the threshold are determined, frequency value is compared with sounding signal frequency, and if they differ by more than 2/T, the distance is determined by the formula: D=S (t-X)/2, where t is the time counting of the first spectrum, S is the sound speed in the air, and X is determined by the formula , where Y1 is the spectral counting amplitude of the first spectrum, Y2 is the spectral counting amplitude of the second spectrum, radial speed of the detected object is determined by the frequency value, if the frequency value and the sounding signal frequency differ by the value of less than 2/T, a number of successive spectra with the correlation coefficient of more than 0.5, and if they are less than 7, the distance is determined by the formula, and if they are more, the distance determination is not carried out.EFFECT: improved accuracy.1 dwg

Control method of object, control system (versions) and method for processing signals (versions) // 2627964
FIELD: physics.SUBSTANCE: control method of object, including extraction of the control error signal, formation of the object control command, formation of the unreliability sign of the control error signal, if this sign is absent, the control error signal is filtered, compensation signal of phase delay of control error signal filtration is formed, and if there is an unreliability sign of the control error signal, the control error signal is predicted and control commands are generated thereon. The transfer function of the closed loop formed by the internal feedback loop is selected in accordance with the transfer function of the object control system. Wherein in the control process, feedback is formed according to the output coordinates or on control commands. If there is no unreliability sign of the control error signal, the control error signal is filtered taking into account the inertial properties of the input signal and the control object, and control is performed on the unfiltered or filtered control error signal. If there is an unreliability sign of the error signal, the prediction of the control error signal is made taking into account the signal along the internal feedback loop and the inertial properties of the input signal and the control object.EFFECT: increased noise immunity and increased stability and accuracy of processing highly dynamic control actions under the conditions of measurement errors, interruption of optical communication and under conditions of disturbances caused by the operation of the complex, increased permissible time in inertial mode, reduced probability of object's tracking loss, reduced probability of object's false capture.11 cl, 6 dwg
ethod of determining location of meteor body // 2627961
FIELD: measuring equipment.SUBSTANCE: method involves determining the location of a meteor body, based on measuring the distance to a meteor body. In the period between measurements of the distance to a meteor body, the location of the meteor body is determined by integrating the body velocity measured by the Doppler frequency shift of the signal reflected by the body taking into account the relativistic correction. When the meteor body approaches the observer, the relativistic correction to the value of the body velocity is determined in accordance with the expression where νr - the velocity calculated from the results of measuring the Doppler frequency shift of the signal reflected by the body, c is the light velocity, when the meteor body is removed from the observer, the relativistic correction to the value of the body velocity is determined in accordance with the expression EFFECT: reducing errors when approaching a meteor body and increasing the probability of its interception.2 cl

ethod for forming direction diagram by digital antenna array // 2627958
FIELD: radio engineering, communication.SUBSTANCE: antenna direction transmitting diagram (DTD) of the cosec2 form by elevation and needle in azimuth is formed with the subarray of the digital antenna array (DAA), and a probing signal is emitted. To achieve the technical result, the emitted signal is received by each subarray of the DAA, the receiving multi-beam DTD by elevation and needle by azimuth is formed by means of digital diagram forming in such a way that its rays over elevation overlap the width of the transmitting DTD cosec2, an array of complex amplitudes of the emitted signals received for each beam of the DTD, is formed.EFFECT: expanding the antenna functionality, increasing the antenna gain factor for reception.3 dwg

Spatially distributed radio emission sources simulator // 2627689
FIELD: radio engineering, communication.SUBSTANCE: spatially distributed radio emissions sources simulator contains the clock generator, the control device, the storage device, the adder-accumulator and N-channels of signals generating, that are made and interconnected in a certain way.EFFECT: simplification of radio emission sources simulation.2 cl, 2 dwg

ethod for estimation of technical characteristics of radar complexes and mobile traction test complex for its implementation // 2627687
FIELD: radio engineering, communication.SUBSTANCE: method is implemented by using a spherical reference reflector (RR) as a moving target with a known effective scattering surface suspended from the probe-shell, which high-precision coordinate measurement, with a "binding" to a single-time system, is carried out using a GPS/GSM receiver, GLONASS/GPS systems, GPRS and Internet networks, and also a parachute system triggered at the moment of the shell collapse of a probe filled with helium or hydrogen. The presence of a parachute provides a delayed descent of the RR with a GPS/GSM receiver attached to it, which will increase the volume of RR detection statistics by 1.5-2 times for one launch of the RR.EFFECT: increasing the reliability of the assessment of detection zones and the accuracy characteristics of radar complexes with a significant reduction in costs.2 cl, 1 dwg

Helicopter radiotechnical complex for detecting "black box" with alarm of crashed airplane // 2627683
FIELD: radio engineering, communication.SUBSTANCE: helicopter radiotechnical complex comprises onboard equipment and the "black box" with the alarm, and the onboard equipment comprises an antenna device, a receiver, a bearing device, an analyzer of received signal parameters, a device of memorizing and processing the received information, a telemetry device, receiving devices, adjustment units, local oscillators, mixers, the first intermediate frequency amplifiers, an engine, a reference generator, a detector, a delay line, the second intermediate frequency amplifier, multipliers, narrowband filters, delay lines, phase detectors, lowpass filters, phase shifters at 90°, squarers, an adder, a threshold unit, phase meters, wherein the "black box" contains a GPS-signal receiver, a receiving antenna, a duplexer, a local oscillator, a mixer, an intermediate frequency amplifier, a demodulator, multipliers, a narrowband filter, a lowpass filter, a computing unit, a modulating code shaper, a delay line, a pseudorandom sequence generator, an adder, a phase manipulator and a power amplifier at 65. The listed means are implemented in a certain way and connected to each other.EFFECT: increasing the efficiency and reliability of detecting an aircraft that has suffered a catastrophe, by using two additional direction-finding channels and a "black box" with alarm.4 dwg

Three-dimensional coherent doppler radar // 2627550
FIELD: measuring equipment.SUBSTANCE: three-dimensional coherent doppler radar comprises a supermode gas continuous wave laser that is attached to the detected object, and to the heterodyne-type photodetector by means of the light-dividing element and of the send-receive lens. It also has a multiple-duct information handling unit, that is linked to the heterodyne-type photodetector outlet, a scan unit in azimuth of a probe radiation, that is formed by the send-receive lens in the fan-like shape emission, where the lens is wide-angled in elevation and narrow-angle in azimuth, and a topographic survey unit that is linked to the last mentioned one. With regard to the above mentioned, the heterodyne-type photodetector is matrix-shaped made from the set of the photosensitive members, the channel wide-band amplifiers, the multilink matched compression filters on the basis of the dispersive delay lines, the channel compensating amplifiers, the channel amplitude demodulators that are linked to the base clippers. The photosensitive members' outlets are attached to the relevant inlets of the multiple-duct information handling unit, which is composed of the placed in series channel frequency rectifiers of the actuating signals with the signal of the linear-frequency modulated heterodyne oscillator. The radar also comprises a multiple-duct unit of the angular coordinates determination on the detected object, that is parallel-connected to the outlets of the multiple-duct information handling unit, and glaring elements of the sea surface and a multichannel measurement unit of the Doppler frequency shifts of the probe radiation rereflections received by the detected object for itself and for the relevant glaring elements of the sea surface. The outlets of the multiple-duct units of the angular coordinates determination and of the multichannel measurement unit of the Doppler frequency shifts for the relevant received emissions are respectively attached to the first and the second inlets of the detected object signature evaluator - its flying height, slant distance and speed vector, the third inlet of which is linked to the topographic survey unit. The outlets of the detected object signature evaluator are linked to the statistical average of the test features at a current time. The reflected radiations detection is achieved just as directly from the detected object so from the sea lights that are formed by the probe radiation dispersion by the detected object surface at different dispersion angles. The monofrequent continuous wave gas laser is complementarily added into radar construction under the collinearity of the optical axes of both transmitting and receiving lenses. This laser is fitted with a piezocorrector of the adjustment of its beam resonator. The piezocorrector forms a transmitting stereo channel based on the additional transmitting lens with the stereo base h. The outlets of both lasers are complementarily linked through the low-reflection mirrors with high transmission to the optical mixer, the outlet of which is attached to the in series affiliated circuit made of the synchronous rectifier (slope detector), the integrating device and the direct-current control amplifier, the outlet of which is attached to the piezocorrector of the additional laser. Upon that, the outlet of the reference quartz-crystal oscillator of the difference adjustment frequency of the primary and additional continuous wave lasers is attached to the second inlet of the synchronous rectifier. Moreover, the same outlet of the reference quartz-crystal oscillator is attached to the third inlet of the detected object signature evaluator - the low altitude naval missile.EFFECT: detected object correct coordinate measuring probability rise.7 dwg

ethod for determining wind speed over water surface // 2627016
FIELD: measuring equipment.SUBSTANCE: method for determining the wind speed over a water surface is proposed, in which more than two spatio-temporal images of a water surface are obtained from optical images obtained by means of more than two optical systems based on CCD photodiode lines, synchronized with one single master oscillator and mounted with different directions of sight in a given angular sector determined by the azimuth angle between the extreme CCD photodiode lines. Each CCD photodiode line records one-dimensional optical images with capturing the horizon line and a part of the sky at small viewing angles. Two images obtained from adjacent CCD photodiode lines are docked by distance. The propagation directions of wind gusts (the angles between the sight directions of adjacent CCD photodiode lines and the motion direction of the wind gust bands between adjacent CCD photodiode lines are determined) and the velocity of wind gusts for adjacent CCD photodiode lines are determined by the inclination angles of the wind gust bands on space-time images obtained by adjacent CCD photodiode lines and the known angle between the sight directions of adjacent CCD photodiode lines. The wind speed is determined over each point of the water surface in the sight direction of each CCD photodiode line from the known model dependence of the dispersion of wave slopes on the wind speed, taking into account the wind gust direction, and the value of the dispersion of wave slopes in the sight direction at each point of the water surface is obtained by solving the "conversion" problem of the dependence of the water surface brightness on the dispersion of the wave slopes with allowance for the angular distribution of the sky brightness. To solve the "conversion" problem, a comparison of the measured water surface brightness normalized to the brightness of the sky at the horizon, recorded in the optical image of the water surface, and the model (calculated) normalized water surface brightness is used at each point of the water surface in the sight direction of each CCD photodiode line. In the formula for the water surface brightness, either an analytical expression for the angular distribution of the sky brightness depending on the lighting conditions is used, or the angular distribution of the brightness of the sky and the water surface area near the horizon is used, recorded in the digital form, if it is necessary to achieve high spatial resolution on the water surface in the sight direction of CCD photodiode lines, or by means of two mutually calibrated cameras, the lenses of which are equipped with polaroids with vertically and horizontally located transmission axes, or by means of a single video camera, the lens of which, like the objectives of the CCD photodiode lines, is equipped with polaroids with either a vertical or a horizontally located transmission axis. In the CCD photodiode line, long-focus narrow-angle lenses are used, and in case of need to achieve a broad band of view - using the CCD photodiode lines themselves with wide-angle lenses mounted thereon and polaroids with a vertical or horizontally located transmission axis, mounted on the lenses.EFFECT: increasing the accuracy of determining the wind speed.4 dwg
Optical device for determining distances to object // 2626973
FIELD: physics.SUBSTANCE: optical device for determining distances to the object includes a radiation source, a probe sequence generator, a clock generator, a light-sensitive element for detecting a reflected optical signal from the object, an integration unit, a correlation module for the radiated and reflected signals, a threshold signal detecting module, a distance detecting module to the object by the time delay of the reflected signal. In addition, the device includes an accumulation unit, a reference source of precise time and frequency signals, a sync pulse generation unit at the start of the sensing cycle at the same time point on different optical devices, a probe counting unit, a sampling and probe processing unit.EFFECT: ensuring the mutual influence suppression of the optical device sounding signals to determine their distances to the probed objects in a group operating simultaneously on the same probed objects in the same frequency range of optical devices.9 cl, 14 dwg, 12 tbl

ethod of determining air object location by signals of their on-board responders of air traffic control systems // 2626765
FIELD: radio engineering, communication.SUBSTANCE: method is carried out by means of operations performed on each n-th energetically available on-board responders (BR): simultaneously with the detection of signal packets to determine the flight height by receiving and decoding answer signals to the corresponding queries of the radar identification system and the secondary radar, to determine - the delay of the receiving time for the signal packets of the j-th and n-th BR, to define the ϕn BR evaluation azimuth in the position point of the interrogating radars (IR) by the delay , to form a normal reference plane defined by the vector PR (point of reception) - IR and a point in space located on the PR-IR axis with the coordinates Yn, to form an azimuthal reference plane defined by the azimuth of the n-th BR - ϕn in the position point of the IR and perpendicular to the plane of the local horizon at this point, to find a straight position line based on the intersection of the normal and the azimuthal auxiliary planes, to calculate the BR spatial coordinates as a crossing point of the found straight position line and the position surface, given by the earth ellipsoid with semi-axes increased by the value of the BR-Hn flight altitude.EFFECT: improving the signal processing quality of on-board responders of air traffic control systems.1 dwg,1 tbl

ethod for determining depth of penetration of armour-piercing all-body caliber and sub-caliber projectiles into thick-walled obstacle // 2626474
FIELD: weapons and ammunition.SUBSTANCE: method for determining the depth of penetration of armour-piercing all-body caliber and sub-caliber projectiles into a thick-walled obstacle includes a shot by a projectile along an obstacle and the subsequent determination of its velocity by a Doppler locator before and after the hitting of the obstacle. The axis of the pattern direction of the radar antenna is oriented at the smallest angle to the final part of the trajectory of the projectile. The speed of the projectile is determined by the signal reflected from its bottom tail section. The penetration depth is determined by integrating the dependence of the velocity of the projectile from the start of the deceleration to the zero value obtained from the measurement results.EFFECT: method allows to increase the accuracy of the velocity measurement of the projectile, to obtain more reliable information in assessing the breakdown effect of projectiles.2 dwg
System of detection of moving objects behind barrier // 2626460
FIELD: physics.SUBSTANCE: invention relates to detection systems and can be used to protect mobile and stationary objects in establishing the penetration of violators into the guarded space and the transmission of alarm signals using near-field radiation based on the use of radar technology and ultra-wideband system technology. It can also be used for search and rescue operations in hard-to-reach areas, in emergency situations (emergencies), incidents, terrorist attacks and in the normal modes of operation of law enforcement agencies and other security agencies. A system of detecting moving objects behind a barrier contains a set of radio wave detection device with a transmitting antenna united by a single radio network and a control center set with a receiving antenna. A set of radio-wave detection devices and a set of control center located outside the protected space are interconnected by a broadband data channel. The set of the radio-wave detection device includes a set of batteries and at least one single wideband detection device (SWDD) configured to emit an ultra-wideband probing signal consisting of a housing in which a power board is connected in series, a radar module with additional amplification stages, a board converter, an interface card, a processor board, a solid state drive, and a transceiver module whose output is connected to a ten-ton for transmitting information to a control center set which includes at least one base station based on a transceiver with an integrated omni-directional antenna and connected to an information processing and display unit (IPDU), analyzing the incoming information, coordinating the work of the SWDD and executed on the basis of a computer. At least one SWDD is arranged with a side of the barrier that is opposite to the guarded space, separating the guarded space from mentioned SWDD, in such a way that the radiated ultra-wideband probe signals cover the entire protected space.EFFECT: reduction of distortion of the received signal, stable detection of moving objects moving in the vehicle during its movement, under conditions of natural vibrations and impacts, and also in stationary conditions.4 cl, 3 dwg
ethod of clustered air target identification // 2626459
FIELD: radio engineering, communication.SUBSTANCE: in the direction of detected air target, several bursts of unmodulated probing signal pulses are emitted, signals, reflected from observed air target (AT), are received, threshold value of received signal estimated parameter is set in the comparator, phase shifters are rearranged to a certain phase change sample, introduced into the probing signal, several bursts of pulses of probe signal with phase manipulation are emitted in the direction of the observed air target, reflected from observed air target (AT) signals are received, value of received signal estimated parameter is calculated, the calculated value of received signal estimated parameter of is compared with the previously established threshold value of the estimated parameter, the decision is made about the presence in the composition of the observed air targets of one or two objects. To make a decision on the identification of clustered air target, the threshold value of estimated parameter is introduced based on certain conditions, which allows to identify clustered air targets located in one resolving volume of the airborne radar (ABR), that is, to recognize the number of objects in the previously detected AT in the case, when the elements of such target are in one resolved volume of ABR, and the reflected signal has a significantly larger amplitude value than when reflected from a single AT, more than one of phase angle values introduced into the probe signal. Incorrect assessment of tactical situation, which consists in making a wrong decision about identifying the clustered air target, is excluded.EFFECT: increasing the reliability of information received to decide on the identification of clustered air target at the target detection stage by means of an airborne radar in the case where the elements of such target are in one resolved volume of airborne radar.1 cl
Radio-wave method of measuring ground speed and drift angle of aircraft // 2626411
FIELD: measuring equipment.SUBSTANCE: in the method of measuring the ground speed and the drift angle of the aircraft, consisting in radio waves irradiation of the underlying surface with two antenna systems, each of which is oriented at an angle θ on each side from its axis in the horizontal plane and at β0 angle in the vertical plane, receiving reflected waves, mixing with part of the radiation wave mode and extraction of the two signals of the difference frequency, the frequency of the radio waves is modulated according to the symmetric linear law, for each of the two signals of the difference frequency, pairs of spectra are calculated on the frequency-increasing and frequency-decreasing modulation sections, S11, S12 and S21, S22 respectively, then the frequency shifts corresponding to the maxima of the cross-correlation function for the first and second pairs of spectra - ƒD1 and ƒD2 - are determined, the frequency shift dƒ of maximum of the cross-correlation function between spectra S11 and S12 amount, displaced by fD1 upwards and downwards according to the frequency scale, and calculated after a time interval dt, ground speed W and drift angle ϕ are determined according to the ƒD1, ƒD2 and dƒ values.EFFECT: increased accuracy of measurements.6 dwg

ultifunctional system of atmospheric radio-zoning // 2626410
FIELD: radio engineering, communication.SUBSTANCE: invention relates to radio engineering and can be used in the development of atmospheric radiosonde systems (RS) based on the application of the radar method for measuring the spatial coordinates of an aerological radiosonde (ARS) and the use of satellite navigation radio-electronic systems (GLONASS/GPS) signals to determine the current coordinates of the aerological radiosonde (RS), wind direction and speed, as well as the transmission of coordinate and telemetric information to the ground base station (BS). The method is implemented through the development of the RS construction structure, namely, by providing the possibility of RS operational work in two allowed frequency bands and different modes of determining the current ARS coordinates: radar, direction-finding, radio navigational.EFFECT: increasing the reliability and accuracy of obtaining meteorological information on the vertical atmospheric profile in the operational range of the RS, with the possible impact of deliberate and unintentional interference.1 dwg

Radar scanning method // 2626407
FIELD: radio engineering, communication.SUBSTANCE: specified azimuth coverage is divided into azimuth sectors with constant boundaries, in each of which, independently from the other sectors provide the one of two parts view area inspection, which are calculated by partially overlapping in the plane distance-elevation angle, in each azimuth sector of the current surveillance period select the part of the view area to inspect this azimuth sector in the next surveillance period, depending on the position of the followed target trajectories.EFFECT: reduction of the time costs and energy resources to inspect the view area field with high elevation angles, while maintaining the targets detection and tracking of its trajectories in this field.5 dwg

ethod of thermal testing of radio transparent cowls // 2626406
FIELD: radio engineering, communication.SUBSTANCE: temperature field on the outer surface of the fairing is created by focusing on the surface with the help of parabolic reflectors of radiation from separate linear infrared radiators that are located along the focal lines of the reflectors. Radiators with reflectors are located along and around the axis of the fairing at such a distance that its ratio to the radius of the fairing was more than ten. Inside the cowl, there is a receiving antenna, and from the outside on the side of the nose of the cowl, the transmitting antenna or vice versa.EFFECT: control of the radio-technical characteristics of the radio-transparent cowl under conditions simulating aerodynamic heating.1 dwg

Homodyne radar // 2626405
FIELD: radio engineering, communication.SUBSTANCE: homodyne radar contains a receiving and transmitting antenna, a sounding signal generator, a circulator, a mixer, an amplifier, an amplitude modulator, a time window function generator, and an amplifier with a quadrature amplitude-frequency characteristic that are connected in a certain way.EFFECT: reduction of the dynamic range of received signals, simplification of the radar.5 dwg

Determination method of the nonuniform ionosphere electron density high level profile // 2626404
FIELD: radio engineering, communication.SUBSTANCE: invention relates to radio engineering and geophysics, namely to means of monitoring the state of ionosphere and measuring its parameters using space vehicles of satellite radio navigation systems. According to the received radio signals from the navigation satellites at two coherent frequencies ƒ1 and ƒ2 the total electronic content of NT in the nonuniform ionosphere is determined, its average value is calculated and the high level profile of the average electron density of the ionosphere is determined by using the iterative procedure for solving the inverse problem, then the small-scale fluctuations average square deviation of the total electronic content and the nonuniformities βi ionosphere intensity, and then the small-scale fluctuations average square deviation high level profile of the electron concentration in the ionosphere nonuniformities is determined.EFFECT: provision of the possibility to determine simultaneously the high level profiles of the average electron density and the small-scale fluctuations average square deviation of the electron density in the nonuniform ionosphere.2 dwg

Selection system of moving targets with measurement of range, radial velocity and direction of motion // 2626380
FIELD: radio engineering, communication.SUBSTANCE: method is based on being used as a probing signal of a periodic sequence of radio pulses with linear frequency modulation (LFM) and characterizes intermittent change in the sign of the frequency deviation, wherein the received signal is processed by a digital generator of quadrature components, then by linear filters consistent with a single LFM pulse with positive and negative frequency deviation, followed by intermittent compensation of enveloping responses of the matched filters, and based on the measurement of the time position of the minimum and maximum difference signal, selection of moving targets and estimation of these parameters are performed.EFFECT: possibility of simultaneous selection of moving targets with measurement of the range, radial velocity and direction of motion.3 dwg

Automatic detection and classification system of short-range sonar // 2626295
FIELD: physics.SUBSTANCE: automatic detection and classification system of the short-range sonar contains a series-connected antenna, a reception-transmission switch, a receiver with a static fan of directional characteristics, a digital multichannel processor, a classification processor, a digital multichannel processing processor, a series-connected block for determining the correlation coefficient of consecutive time intervals, a block of selecting consecutive time intervals between spatial channels with a correlation coefficient greater than 0.5, a block of determining the amplitudes of the time samples, a maximum amplitude selecting unit with a correlation coefficient greater than 0.5, an identification unit for the total time with CC>05 and the formation of the object bank, the first output of the processor for multichannel processing is connected via the first input of the control unit and display with the radiation generator and the reception-transmission switch, and the second output with the second input of the control unit and the display.EFFECT: system construction provides automatic detection of echo signals from objects under the influence of surface and bottom reverberation for one radiation cycle - reception for all spatial directional characteristics, automatic measurement of the parameters of the detected objects and the data output for their classification.1 dwg

Passive method of detecting vehicles by its own acoustic noise // 2626284
FIELD: physics.SUBSTANCE: synchronously receive a signal for two antennas, digitize and store information arrays. Split the signal into intervals, carry out identification by maxima in the amplitude spectrum. Then carry out the scanning directional characteristics of receiving antenna for each nth time interval according to the total signal from the output of each of the two receiving antennas, build fan chart, determine the availability of transport by the presence of unexpected fan charts, then determine the azimuth direction relative to the center of the antenna as a weighted average of maximum angles peaks in fan pattern diagram, the sign of the difference between the angles, decide on direction, calculate the current y coordinate using the coordinates for the neighbouring define interval speed. The second implementation, determine the direction of the movement and location of the sign of the slope dependence of delay time correlation of maximum convolution arrays and on the dynamics of its inclination, calculate the autocorrelation function of total data then sum array and determine the speed of the vehicle as the ratio of the distance between the centers of the antennae to the time between the maximums of the autocorrelation function.EFFECT: enabling simultaneous identification, calculate the speed and direction of movement.2 cl, dwg 9 1 tbl

ethod of chaotic spotlight review in optical location system // 2626245
FIELD: physics.SUBSTANCE: beam of the optical antenna of the locator in the search space is unfolded in a spiral programmed by the oscillator of chaotic oscillations, whose movements represent a chaotic continuous attractor, for example the attractor of Ressler, in addition, the power and frequency of the probing pulses are changed, depending on the change in the calculated length of the radius vector of the imaging points of the attractor.EFFECT: increasing the probability of finding the target and stealth operation of the locator in the entire volume of the search space.3 cl, 4 dwg

ethod and system of positioning group of submarine objects in limited water volume // 2626244
FIELD: physics.SUBSTANCE: optical beacons are installed on each of the objects, the number of which and their locations on the underwater object are chosen from the condition of ensuring continuous monitoring of, at least, two video cameras. The radiation of optical beacons of the objects are fixed by using four video cameras located at the ends of mutually perpendicular axial lines of the horizontal section of the controlled volume. Initiation of optical beacon radiation is carried out by means of a signal radiated by four initiator-initiators in the optical wave band, the duration of which is equal to the duration of the video frame Δt, the repetition period of which is T=Δt*(N+1), where N - the number of objects in the group, and the beginning of the radiation is synchronized with the camera synchronization pulses. As an identifying feature of the object, a preset video frame number is used, in which the optical beacon of this object emits a signal. Video sequences are allocated in the video frames corresponding to each identified object, by which the coordinates and parameters of the movement of each object are calculated. The processing of video information from video cameras is performed on a computer complex located at the control point for the actions of underwater objects outside the controlled water volume.EFFECT: identification and continuous determination of coordinates and parameters of the motion group of underwater objects, including partial overlapping of objects.14 cl, 5 dwg
ethod of determining spatial coordinates of objects and system for its realisation // 2626243
FIELD: measuring equipment.SUBSTANCE: emitters are located at points in the space with the given coordinates, having, at least, one sensor on the controlled object at a distance from the radiators, not exceeding the limit distance of its measurement, a starting synchronizing pulse is sent to each radiator and each sensor, simultaneously on each sensor and on each radiator the generation of a binary signal is started with the phase specified for each sensor and transmitter, sequentially the space is irradiated with each radiator, signals are recorded on each sensor from each radiator, the signals received from each emitter and the signals generated by each sensor are compared by phase, the distance from each sensor to each emitter is determined by the obtained phase difference, then with the method of trilateration the three-dimensional coordinates of each sensor are determined relative to the pre-approved reference point.EFFECT: simplifying the design of the measuring system and reducing the requirements for parts and assembly units in the manufacture and installation while maintaining the accuracy characteristics, simplifying the processing of the received data.2 cl, 3 dwg

ethod of differentiating anomalies on water surface by multi-frequency microwave radar // 2626233
FIELD: radio engineering, communication.SUBSTANCE: signals are emitted and received, scattered by the water surface in the microwave bands (LX-bands) on two polarizations (HH and VV) for two frequencies separated by not less than one and a half times at a certain observation angle. Herewith the observation angle is chosen in the range of 50-80° from the vertical. As the characteristics of the received signals, the difference of the measured specific effective scattering areas of the received signals on two polarizations for each of the two frequencies is used. The obtained values of the differences determine the experimental values of the wave intensities at the Bragg wave numbers. At the same time, the average wind speed is measured. For the measured average wind speed, theoretical background wave intensities at Bragg wave numbers are calculated using the model spectrum. Spectral contrasts of waves on the water surface are obtained as the ratio of the theoretical background values of the wave intensities at the Bragg wave numbers to the experimental values of the wave intensities at the Bragg wave numbers for both frequencies for the measured average wind speed. A decision is taken on the presence of an anomaly on the water surface on the basis of the magnitude comparison of the spectral contrast of waves on the water surface at the maximum of the Bragg wave numbers with a certain threshold value. The ratio of the obtained spectral contrasts is calculated. It is concluded that there is a film slip or a calm zone on the water surface based on the position of the contrast ratio value found for the measured value of the average wind speed relative to the semiempirical curve of the contrast ratio relationship to the wind speed at a certain observation angle: if the value is above the curve, the film slip is observed, if it is below - the calm zone is observed.EFFECT: increasing the accuracy of anomalies on the water surface.2 dwg

ethod of monopulse sonar detection // 2626148
FIELD: radars.SUBSTANCE: invention relates to monopulse sonar systems, namely, to methods of detecting and locating navigation obstacles, locating a vessel by artificial and natural underwater orienting points in both water surface and underwater positions of the vessel. Assigned task is accomplished by that in the proposed technical solution during a target location in vertical and horizontal planes a transceiving antenna consisting of separate electroacoustic transducers forms a sum, a differential and a phase-reference receiving channels, thus forming six linearly independent receiving channels (of the vertical and the horizontal planes), herewith signals of the sum and the differential receiving channels are separately fed to phase multiplier-type detectors, the second inputs of which are fed with a signal of corresponding phase-reference receiving channel, signals of each differential receiving channel before been fed to the phase multiplier-type detectors are first passed through a phase shifter, then output signals of the phase multiplier-type detectors of the sum and the differential receiving channels are divided into an output signal of the phase multiplier-type detector of corresponding phase-reference receiving channel, then the obtained signals form a two-parameter direction-finding characteristic (separately in the horizontal and the vertical planes).EFFECT: technical result of the disclosed invention is creating a method of a monopulse sonar detection providing for wider field of view in a sonar system and increasing the number of simultaneously resolved objects without increasing the antenna system dimensions.1 cl, 2 dwg

ethod for calibration of parametric tract and device for its implementation // 2626068
FIELD: physics.SUBSTANCE: method and the device for calibration of the parametric tract of the sonar that reduces the amplitude-frequency distortions of the matched filter response to the useful echo by optimizing the parameters emitted in aqueous medium of the pumping signals: the carrier frequency of the tone pumping signal, the carrier frequency and the frequency deviation of the frequency modulated pumping signal. The device for calibration of the parametric tract of the sonar contains a reference reflecting object, a high-frequency transmitter antenna and a low-frequency receiving antenna, a transmitting unit, a receiving unit, a digital signal processing unit, a control unit.EFFECT: optimization of the pumping signal parameters emitted to the aqueous medium to ensure minimum amplitude-frequency distortion.2 cl, 9 dwg

ethod of effective area identification of air objects scattering by on-board radar location station // 2626018
FIELD: radio engineering, communication.SUBSTANCE: aerial object (AO) is irradiated with a sounding signal, the reflected signal is received, the power of the radiated signal is measured, the distance to the airborne object, when determining the value of the effective scattering area (ESA) of the AO for classification according to the criteria of dimension "large", "medium", "small" measuring the angle of the horizontal angle AO, measuring the amplitude of the received signal, comparing the amplitude of the received signal with a predetermined threshold, if the amplitude of the received signal is exceeded by a predetermined threshold, the device measures the power values of the radiated signal, the distance to the AO, the angle of the horizontal angle AO, the amplitude of the received signal, then the above operations are repeated until an array of at least five measured power values of the radiated signal, the range to AO, the angle of the horizontal angle AO and the amplitude of the received signal is accumulated in the mass storage device, an array of ESA values of the BO is calculated for each of the stored measurements according to a certain formula. Using the obtained array of ESA AO values and the measured array of angles of the angle AO, find the minimum and maximum values of angles of the angle AO, determine the range of the angle of the horizontal angle, then determine the average value of the ESA AO in the measured range of angles of the horizontal angle. After that, based on the ESA value obtained, the target is classified according to predetermined criteria for classifying the object as "large", "medium", "small".EFFECT: increasing the accuracy of determining the effective area of airborne scattering.1 dwg

ethod of navigating mobile object // 2626017
FIELD: physics.SUBSTANCE: sequential photoexposure of the earth's surface is performed with the stereopair cameras mounted on a mobile object, in the image of each camera, at least, three specific points of the surface are separated, the image of which is stable to be distinguished from images of all neighboring points, their coordinates are calculated in the related coordinate system, the angular and the linear movement of the movable object are determined relative to the earth's surface during the time interval between two photoexposures, the angular and the linear movement of the mobile object are determined during movement, and the current location coordinates are determined, that allows navigation while ensuring visibility of the earth's surface.EFFECT: automation of measuring the parameters of the mobile object spatial displacement in conditions of visibility of the earth's surface.2 dwg

ethod of determining the location of short-pulse altitude source of x-ray radiation by means of cosmic basis // 2626016
FIELD: physics.SUBSTANCE: with the help of devices installed on a spacecraft (satellite), x-ray pulses from the source and optical fluorescence radiation coming from the direction into the nadir are recorded. Optical fluorescence radiation occurs as a result of exposure to X-rays from the source to the atmosphere. The time and direction of arrival of the x-ray pulse and the time of arrival of the optical pulse from the nadir are recorded. In this case, the angle between the directions to the source and the nadir is measured. The difference in arrival times of the pulses from the direction to the source and from the nadir is measured. From the measured time difference and from the measured angle between the directions to the source and to the nadir, at a known altitude of the orbit of the spacecraft, the source height and the distance between the spacecraft and the source are determined.EFFECT: increasing the accuracy of determining the location of the X-ray source, eliminating the dependence of measurements on meteorological conditions.1 dwg

Device for recognizing nonmanoeuvreing ballistic target by fixed selection of range squares // 2626015
FIELD: radio engineering, communication.SUBSTANCE: method is implemented by sharing the manoeuvre detector on the passive part of the ballistic trajectory (PUT) and the manoeuvre detector on the linear trajectory from the range squared samples. The decision to assign the escorted target to a class of non-destructive ballistic targets (BTs) is taken if the manoeuvre detector on the PUT has issued a message about the absence of manoeuvre, and the manoeuvre detector on the linear trajectory - about the presence of manoeuvre. The recognition device comprises a digital non-recursive filter consisting of a memory, two blocks of the squares of range multipliers by weight coefficients and two adders, and also contains two threshold devices, three coincidence circuits and a rms error calculator, connected in a certain way.EFFECT: elimination of ambiguity of recognition of a non-destructive ballistic target.2 dwg, 3 tbl

ethod of ground mapping by airborne radar // 2626012
FIELD: radio engineering, communication.SUBSTANCE: signal is coherently emitted and accumulated during scanning by a beam of antenna diagram near the track line of radar carrier when the beam of antenna diagram, smoothly moving, covers the entire front sector. Coherent accumulation of signals is carried out over the total channel and the difference azimuth channel of antenna, then signal processing of two accumulated signals is carried out, consisting in determining and compensating of phase progression, determining the steepness of signals frequency modulation, allocating signals accumulated to the left and right of track line of ABR carrier, spectrum signals processing, combining signals accumulated to the left and right of carrier track line, after formation of two combined arrays of signal amplitudes, an array of difference azimuth channel amplitudes is subtracted from the array of total channel amplitudes, and then a radar image is formed.EFFECT: increasing the bearing discrimination near ABR carrier track line.2 dwg
ethod of auxiliary holding in the joint navigation system radio set // 2625819
FIELD: radio engineering, communication.SUBSTANCE: method includes the auxiliary information formation stages, the holding and satellites tracking stages. The auxiliary information represents the systematic error of the joint navigation system radio set clock, used to correct the target satellite pseudorange, when holding and tracking the target satellite and the target satellite phase accurate prediction. It reduces the holding time and increases the holding accuracy, while not only the satellites auxiliary holding from the single satellite system is performed and also the satellites joint auxiliary holding from the several satellite systems is performed.EFFECT: reduces the satellites holding time and increases the holding accuracy.3 cl, 3 dwg
Autogiding optical-mechanical system of fiber-optic spectrograph with counter lighting of optical fiber // 2625638
FIELD: physics.SUBSTANCE: autoguiding optical-mechanical system with counter lighting of optical fiber has optical fibre, which connects an input system and the optical system of a spectrograph and a detector of shifting the image of the star center from the input end of the optical fibre. Herewith the optical fiber input is glued in the center of one of the faces of the optical prism. And in front of the optical prism there are two compensating optical elements in the beam course, made in the form of plane-parallel plates, each of which has the ability to rotate about its axis. The axes of the optical elements are located in orthogonal planes, and their drives are made in the form of electric motors controlled by a personal computer through a special algorithm.EFFECT: simplification of design and manufacturing technology of the autoguiding optical-mechanical system of the optical spectrograph based on counter lighting of the optical fiber.1 dwg

ethod of unmanned aircraft motion parameters minimax filtration with correction from satellite navigation system // 2625603
FIELD: instrument making.SUBSTANCE: invention relates to aviation and space instrument-making devices and unmanned aerial vehicles (UAV) parameters filtration systems, determining location in space using correlation data from several navigation instruments and can be used for UAV flight parameters filtration coming from on-board navigation system (BNS) to increase accuracy of UAV motion parameters determining. For this purpose, UAV parameters filtration process is performed in discrete time intervals based on processing information on UAV current position, coming from BNS and satellite navigation system (SNS). Filtering UAV motion parameters in current position consists of coming from BNS motion parameters minimax filtration, and periodic BNS correction from SNS. UAV parameters minimax filtration is based on calculation of data areas, taking into account measuring device possible error range and approachability areas (OA). Based on analysis of mutual position information areas and OA UAV motion parameters vector evaluation is determined, based on which as UAV control for transition into new position is determined. At periodic BNS correction from SNS in discrete time intervals measured data areas are abruptly reduced to minimum sizes determined by SNS motion parameters determining accuracy, and then vary in accordance with features of BNS operation till the next correction moment.EFFECT: increase in accuracy.1 cl, 3 dwg

ethod for detecting boundary of local underground peat fire and underground peat fire exploring robot // 2625602
FIELD: physics.SUBSTANCE: method for detecting the boundaries of local underground peat fire, which includes GPR subsurface sensing of all strata of the peat layer, which consists in the emission of pulses of electromagnetic waves and detecting signals reflected from the boundaries of layers of the probed medium having different electrical properties, ground penetrating radar mounted on the robot platform, which moves along the route scheduled after the patrol conducted surveillance of the controlled area, and GPR profiling is carried out on the given route and in the planned route point to produce sensing of the peat layer in terms of finding the local underground peat fire. The essence of the claimed devices is that the robot for the exploration of the underground peat fires containing tracked chassis, powertrains, controlling and monitoring systems and data from surveillance conducted in real time, and the platform on the last installed ground-penetrating radar for GPR subsurface sensing of all layers of peat deposits in terms of finding a local underground peat fire.EFFECT: ensuring detection of underground peat fire boundary localization with any depth of peat in areas, where the traditional placement of ground vehicles is extremely dangerous.2 cl, 2 dwg

Device for imitation of a false radar objective at sensing with signals with linear frequency modulation // 2625567
FIELD: radio engineering, communication.SUBSTANCE: invention relates to devices designed to simulate the time-frequency structure of a radar signal reflected from a underlying surface from one or more targets in a fixed direction and can be used, for example, to simulate false targets, including those located closer than the carrier, to simulate the combat operation of the radar system, as well as to simulate echo signals of radio altimeters when probing with signals with various types of linear frequency modulation. Dynamic modification of simulating the parameters is carried out, as well as in accordance to the parameters of the input sounding signal.EFFECT: imitation of the target with a range greater than or less than the range of the carrier, regardless of the magnitude, direction, and combination of the signs of the rate of linear change in the frequency of the sounding signal.3 cl, 8 dwg

Sidelobe suppression device for pulsed compression of multiphase p3 codes // 2625559
FIELD: radio engineering, communication.SUBSTANCE: sidelobe suppression device for pulsed compression of multiphase P3 codes comprises an input-coupled modified Woo filter for P3 code of odd length N and a generator of digital correcting signal from the series-connected code converter to complex conjugated code and digital filter with finite impulse response of the FIR filter of order N+1 with (N+2) coefficients -1,1, 0, …0, -1.1, an output of the adder connected to the first input, a delay line for the duration of one code element, and a two-input subtractor where the output of filter Woo is connected to the input of delay line and to the first input of subtracter, the output of the adder connected to the second input, and the second input of subtracter is connected to the output of delay line, the first coefficient of modified Woo filter impulse response is equal to 1 - exp(iπ/N), where , and (N+2) is dimensional vector of coefficients of digital correcting signal generator filter is respectively equal to -1,1, 0,0, …0, -1,1.EFFECT: providing sidelobe suppression for odd-length P3 code.2 dwg

Radar facility for detecting the asteroids // 2625542
FIELD: radio engineering, communication.SUBSTANCE: radar facility is the spaced apart transmitting and receiving stations, where the ground radars of different ranges are used as the transmitting stations, distributed approximately uniformly over the Earth surface, and the receiving stations are positioned on space vehicles, moving along the orbits around the Earth or parallel with the Earth in space area, each of which contains the reception multifrequency antenna, connected to the receiving device inputs, which includes the first and the second receive paths, which outputs are connected to the first and the second inputs of the signal recording system, to the third input of which the synchronometer is connected. The first signal recording system output is connected to the first correlator input and to the first information storage device input, and the second signal recording system output is connected to the second correlator input and to the second information storage device input, which output is connected to the transmitting path, including the information signal generating system and the transmitting antenna, directed to the Earth, to transmit the information to the processing center at the frequency different from the receiving paths frequencies to provide its simultaneous operation.EFFECT: increase of the extraterrestrial objects detection range and reliability and improvement of the trajectories measuring accuracy their flight in the near-earth and far outer space due to the use of the luminal effect phenomenon.5 dwg

ethod for determination of spatial angular coordinates of radio signal in amplitude monopulse pelengage systems // 2625349
FIELD: radio engineering, communication.SUBSTANCE: essence of the method consists in receiving the signal N of ray beam pattern (BP) of the antenna system (AS), orientation and rays number N of which allows simultaneous covering of their BPs of the entire area of keepout, detection of signals and measurement of their amplitudes for all N reception channels, among which the maximum is found and the corresponding number of the ray is stored, relative to which ratios of the amplitudes of other rays signals are determined. To form estimates of signal angular coordinates, the keepout is preliminarily divided into discrete elements, each of which is characterized by a pair of angular coordinates and corresponding signal amplitude values for all BP N rays relative to the maximum for a given pair. For the obtained set of relations for each of keepout discrete elements, the best coincidence of relationships with their measured values is determined for identical numbers of rays with maximum amplitudes using the least squares method, where coordinate estimates are the coordinates of discrete element corresponding to this case.EFFECT: provision of non-search in the direction of signal spatial angular coordinates determination under the conditions of contradiction between angular dimensions of keepout and raywidth of antenna directivity beam pattern, necessary to ensure a given accuracy of direction finding.8 dwg

ethod to prevent collision of vehicles and device for its implementation // 2625213
FIELD: transportation.SUBSTANCE: method and device relate to the technology of preventing collisions and run-overs of motor vehicles and other transport means (TM) with the uncontrolled exit of the vehicle to the oncoming lane, or a roadside, or in a ditch of the oncoming or associated traffic due to driver's fatigue, falling asleep at the wheel while driving, losing control of the vehicle location relative to the dividing marking lines of the traffic area of the road and with the impossibility of visual control due to snow cover, losing control of the vehicle motion in the inadequate condition of the body while taking medicines and other forbidden preparations affecting the vehicle driving ability, a disease attack, or the driver's death. When crossing with a motor vehicle the dividing marking lines of the traffic road area, which are the carriers of the control contactless information, the device on the motor vehicle receives electromagnetic impulses of the signal, converts them into electric current, provides supplying the sound signal to the emergency acoustic signalling device in the motor vehicle to bring the driver into the operation state, and simultaneously the light signal to the emergency light signalling devices concretizing the emergency situation for motor vehicles moving along the lanes of oncoming and associated traffic.EFFECT: increasing the safety of the motor vehicle operation.2 cl, 2 dwg

System for measuring spacecraft distance // 2625171
FIELD: measuring equipment.SUBSTANCE: system for measuring the spacecraft (SC) distance consists of a spacecraft transceiver and a ground control complex (GCC) comprising a personal computer operator, a multiplexer/encoder, a transmitter, an antenna post, a receiver, a time-measuring unit, a reference generator, a permanent memory unit of commands and a permanent memory unit of ranging sequences, an OR gate, a search correlator and an averaging circuit unit, the output of which is the output of the system, wherein the first operator's PC output is connected to the permanent memory unit of commands and the first input of the OR gate, the second operator's PC output is connected to permanent memory unit of ranging sequences and the second input of the OR gate, the first correlator input with a search pattern is connected to the output of the multiplexer/encoder, the second correlator input with a search pattern is connected to the receiver output, the correlator output with a search pattern is connected to the second input of the time-measuring unit, the third input of the time measuring unit is connected to the output of the element OR, the output of the measuring unit is connected to the input of the averaging unit, the output of the multiplexer/encoder is connected to the input of the transmitter, the output of which is connected to the input of the antenna post, the output of which is connected to the receiver, the CA receiver is connected by two links to the antenna post, the reference generator is connected to the first input of the time-measuring unit.EFFECT: increasing the accuracy of measuring the spacecraft distance.1 dwg

ethod of detecting objectives at set range // 2625170
FIELD: radio engineering, communication.SUBSTANCE: method for detecting a target at a given range by an ultra-wideband noise radar with signal processing by double spectral analysis of the reflected signal includes parallel spectral analysis of the spectrum of the total signal formed by adding the reflected signal from the target signal to the reference signal as part of the emitted signal. For parallel spectral analysis of the spectrum of the total signal, multichannel parallel filtering is used at the frequencies of the maximum and minimum of the spectrum of the total signal. The decision to find the target at a given range is taken by the presence of signals at the output of all the spectral channels corresponding to the maximums of the spectrum of the total signal and to their absence at the output of all channels corresponding to the minima of the spectrum of the total signal.EFFECT: high performance, range of ranges, energy potential, uniqueness of target detection at a given range.4 cl, 10 dwg
 
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