Systems using the reflection or reradiation of radio waves, e.g. radar systems and analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified (G01S13)

G   Physics(391163)
G01   easuring; testing(233827)
G01S13                 Systems using the reflection or reradiation of radio waves, e.g. radar systems; analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified(2293)
G01S13/16 - Using counters(2)
G01S13/524 - (14)
G01S13/526 - (8)
G01S13/534 - (3)
G01S13/56 - For presence detection(39)
G01S13/68 - For angle tracking only(17)
G01S13/70 - For range tracking only(8)
G01S13/89 - For mapping or imaging(82)
G01S13/92 - For velocity measurement(6)
G01S13/93 - For anti-collision purposes(82)
G01S13/94 - For terrain-avoidance(20)
G01S13/95 - For meteorological use(269)

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 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

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

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

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 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 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

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 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

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

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

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

Autodyne transmitter-receiver of the atmospheric radio probing system // 2624993
FIELD: radio engineering, communication.SUBSTANCE: in the proposed device, containing the microwave generator and connected with it the transmitter-receiveing antenna, the microwave generator is configured to electrically control the frequency and the autodyne signal selection unit is connected in series to it, the amplifier, the request signal detector and the response pause impulse generator. At that the response pause impulse generator output is connected to microwave generator. The request signal detector consists of the series-connected bandpass filter, the linear detector, the comparator, and the temporary selector for the requested impulses.EFFECT: increase of the device sensitivity in the requested radio impulse receiving mode, reduction of the time position fluctuations, the depth and duration of the response pause, narrowing of the transmitter-receiver radiation spectrum, increase of its jamming protection from active interference and simplification of the device setting.4 cl, 1 dwg

Radiotransparent coating // 2624840
FIELD: chemistry.SUBSTANCE: radiotransparent component (1), which includes a radio-transparent body (3), preferably a plastic body. Part of the surface has a layer (5) consisting mainly of silicon. The thickness of the layer (5) consisting mainly of silicon is in the range from 10 nm to 100 nm. Between the radiotransparent body and the layer (5) consisting mainly of silicon an intermediate layer (7) is applied, comprising a polymeric layer which consists of a lacquer cured by UV radiation for smoothing the potential surface structures, wherein a polymer layer (9) consisting mainly of the lacquer cured by UV radiation is applied to the layer (5) consisting mainly of silicon, as a layer protecting from the environment impact.EFFECT: creating a lightweight and easy-to-manufacture coating.9 cl, 4 dwg

Autocompensor of doppler shifts of phase of interference // 2624795
FIELD: physics.SUBSTANCE: proposed compensator of Doppler interference phase comprising the phase estimating unit, a first delay unit, first and second blocks of complex multiplication block complex conjugate, the second delay unit, a timing generator, the first and second multipliers, first, second, third and fourth cosine-sine function generators, the first and second memory blocks, a complex adder additional phase calculator, an additional block phase estimation, the first and second additional blocks of complex multiplication, complementary complex conjugation block and the third and fourth delay units in a certain way interconnected and performing coherent processing incoming samples.EFFECT: improving the accuracy.9 dwg

Radar station circular view "resonance" // 2624736
FIELD: radio engineering, communication.SUBSTANCE: radar station (RS) contains a sectoral antenna of a circular view that includes four sector antennas of a meter electromagnetic wave band installed along the perimeter of a regular polygon centred on the control and processing cabinets of radar signals, as well as a digital communication and data transmission radio station and a ground-based radio interrogator "friend or foe". The means, which are part of the radar of the circular survey, have been implemented in a certain way and are interrelated among themselves.EFFECT: increasing the productivity while increasing the range.10 cl, 11 dwg

ethod of determining speed of distribution and direction of ionospheric perturbation // 2624634
FIELD: physics.SUBSTANCE: invention can be used to control solar, geomagnetic and seismic activity, earthquake precursors, volcanic eruptions, tsunamis, thunderstorm activity, the dynamics of powerful storm cyclones, as well as to detect nuclear and other large explosions and fires, large accidental discharges to Nuclear power stations, launches of comic devices and rockets, radiations of powerful radio transmitting complexes of radar and communication purpose, special impact on the ionosphere with the target to control its parameters. The method is realized by satellite radio navigation systems GLONASS/GPS and an extended grating of two-frequency receivers that provide reception and processing of signals.EFFECT: increasing the detection sensitivity and accuracy of determining the propagation velocity and direction of arrival of the ionospheric disturbance detected by the two-frequency receivers of the satellite radio navigation system GLONASS by suppressing false signals received via additional channels and eliminating the phenomenon of reverse operation.5 dwg

ethod of digital processing of signals in radar location stations with synthesized antenna aperture of continuous radiation and device for its implementation // 2624630
FIELD: radio engineering, communication.SUBSTANCE: method is performed by equalizing the amplitude-frequency spectrum of the signal before digitizing it. After equalization, the dynamic range of the signal amplitude at the input of the analog-to-digital converter decreases, which in turn leads to a decrease in the minimum signal level that can be digitized with it. For the practical realisation of the method for digital signal processing in the radar with synthetic aperture continuous wave antenna device comprising a series-connected receiver and a multiplier sequentially connected analog-digital converter and a digital processor, and a transmitter whose output is connected to the second input of the multiplier, additionally introduced frequency correcting circuit, whose input is connected to the output of the multiplier, and an output - to the input of an analog-digit converter. The amplitude-frequency characteristic of the frequency correcting circuit is inversely proportional to the law of variation of the amplitudes of the frequency components from the range.EFFECT: alignment of the average level of brightness of the radar image in the direction of the far edge of the field of view, increasing the range of the radar.2 cl, 1 dwg

ethod of optimum images reconstruction in radar location systems of earth remote sensing // 2624460
FIELD: radio engineering, communication.SUBSTANCE: imaging generation process is the processing of radio signals reflected from the Earth surface, when generating images produce the additional spatial filtering of the data, coming from the agreed receiver output, by the corrected filter to restrict the resulting hardware function, and thereby reducing the planarization of the recovered radar image, at that the systematic recovery error is decreased. The solution regularization by means of the correction filter minimizes the ambiguity of the radar image reconstruction.EFFECT: increase of the earth surface observed area reconstructed radar image resolving power.5 dwg

obile radiolocating station // 2624437
FIELD: radio engineering, communication.SUBSTANCE: invention can be used to detect, track and receive coordinate and non-coordinate information about carrier rockets and space vehicles in the electronic scanning sector (ESS), estimate the interference situation in ESS, and generalize information on the target and interference conditions obtained in the active and passive modes of operation. The mobile radar includes two separate antenna systems, receiving and transmitting, which are digital active phased arrays located on vehicles that can be located at a distance from each other and an information management, processing and display system including means for generating radiation patterns and digital processing and generation of signals for transmission and reception. Each of the antenna systems is provided with a casing consisting of two parts, each of which is made with power ribs and supports that are movable in mutually opposite directions to the stop of the supports in the surface, on which the corresponding vehicle is located.EFFECT: ensuring the operation of the radar in a continuous mode, which allows maximum use of its time and energy resources, and the possibility of simultaneous tracking and detection of objects of observation in different angular directions due to the ability to receive and radiate signals in different angular directions, and also increases the reliability of the radar both in working position and during its transportation.3 cl, 2 dwg

onopulse pelengator with combined antenna device // 2624008
FIELD: radio engineering, communication.SUBSTANCE: monopulse direction finder with a combined antenna device comprises a two-mirror antenna with excitation of the active phased array antenna, the elementary feeds which are connected to the antenna input-output multi-channel transceiver, the signal outputs of which are connected to respective inputs of a multi-channel device digital conversion and the formation of a sum-difference signals also contains a pathogen-oscillation synthesizer reference and control electronic computer (PC). The multi-channel transceiver consists of four transceiver modules, each comprising three receive-transmit switches, a mixer, a power amplifier whose input through the preamplifier is connected to the first output of the first receive-transmission switch, and the output is connected to the first input of the second receive-transmit switch, The second input-output of which forms the antenna input-output of the transceiver module, and the output through a series-connected protection device, a low-noise amplifier and an amplifier -frequency connected to the second input of the third transmit-receive switch having a first input constituting the input of the excitation signal at the intermediate frequency transceiver module, and the output is connected to the second input of the mixer, the output of which is connected to the input of the first receive-transmission switch, the second output of which forms the signal output of the transceiver module, in addition, the reference-oscillator includes a reference oscillator to the output of which a sampling frequency driver is connected whose output is connected With the corresponding input of the multichannel digital converter and the formation of the sum-difference signals, the oscillator of the local oscillator frequency, to the output of which n The first inputs of mixers of all transceiver modules are connected, and the intermediate frequency driver, to the output of which the first inputs of four quadrature amplitude modulators, the information inputs of which and the information input of the oscillator of the local oscillator are connected to the first output of the control computer, the outputs of the quadrature amplitude modulators are connected to the first inputs of the third receive-transmit switches of the respective transceiver modules, and the input of the reference signal of the multichannel digital- Sum-difference signals, control inputs of the switches are connected to the third output of the control computer -transmission of the transceiver modules, and to the fourth - the control input of the antenna device.EFFECT: increase the speed and accuracy of bearing determination.3 dwg
ethod of processing super-wide-band signals // 2624005
FIELD: radio engineering, communication.SUBSTANCE: received input signal is first multiplied by a reference signal matched to the transmitter signal to form two quadrature channels; then, in each quadrature channel of all N ranging channels, processing is performed matching the bursts of sub-impulses, forming a matrix of complex signals in the form of two quadrature components and further, starting from the matrix S, the phase distortion Δψko in each sub-impulse is performed, and these corrections are added to the corresponding sub-impulses of all channels, which are then summed in each distance channel, forming the resulting N complex samples of the output signal.EFFECT: compensating phase distortions of linear frequency modulation.7 cl, 19 dwg
ethod of reviewing air space by radar location station with active phased array antenna // 2623579
FIELD: radio engineering, communication.SUBSTANCE: transmitting and receiving radiation antenna patterns are formed, probing signals are emitted in the form of a burst of pulses, the reflected pulses are received from the targets, while the receiving channels of the transmitting and receiving modules of the active phased array antenna are blocked for the duration of the probing pulses. The receiving and transmitting radiation antenna pattern (RAP) is generated independently by the active phased array antenna, and after the radiation of the probing pulses, the transmitting RAP is moved to the next angular position and the receiving RAP is left at the previous angular position until all pulses from the emitted burst are received from the target, then the receiving RAP is moved to the next angular position, the described sequence of actions is repeated for the required number of angular positions.EFFECT: simultaneous receiving and emitting the probing signal at different angular positions by separate adjusting the radiation antenna pattern to receiving and transmitting.1 dwg

Radar location method for detecting aircrafts // 2622908
FIELD: radio engineering, communication.SUBSTANCE: in the proposed radar location method for detecting aircrafts, probing radio signals are emitted alternately with linear polarization and with quadrature polarization, and each radiated probing radio signal with quadrature polarization is phase-synchronous with the previous linear-polarizing probing signal. After the spectra comparison of the demodulated reflected radio signals with linear polarization and reflected radio signals with quadrature polarization, it is judged that the aircraft is detected by the presence of the value multiplicity of their amplitude modulation periods.EFFECT: possibility of detecting unobtrusive aircrafts.2 dwg

ethod for distortion of radar image in space radar station with synthetic antenna aperture // 2622904
FIELD: radio engineering.SUBSTANCE: invention relates to radio engineering, in particular, to methods and equipment for electronic jamming of radar stations with synthetic antenna aperture (SAR). Said result is achieved by the following: method of distortion of a radar image in SAR, based on receiving by the relay station probing pulses of space SAR sp(t), their amplification, transfer of carrier frequency to an intermediate frequency, filtration, analogue-to-digital conversion with a certain interval of sampling, recording the obtained sequence of digital readings, filtering and radiation of relayed radar signals in the direction of space SAR, followed by setting the dimensions of the masked elliptic area, for which is a false mark is formed, vector of geocentric coordinates of the point of the Earth's surface, corresponding to position of the center of the false marks, is calculated for each probing current distance between space SAR and point on the Earth's surface, corresponding to the position of the center of the false marks and the distance between space SAR and transponder, forming N realizations of functions of fast and slow phase modulation, distributed as per the Gaussian laws with zero mathematical expectation, mean-square deviations and certain correlation intervals, setting the law of pulse modulation (modulation function) in the form of a series of digital readings, converting the generated sequence of digital readings to analogue relayed pulse, transferring its frequency from intermediate to carrier and amplifying to a certain power level. Core of the invention is that the functions of fast and slow modulation used when forming relayed radar signal provide blur effects of the false mark with the respect to the coordinates of the inclined line and track distances by introducing uncertainty into the current phase of the retransmitted signal and random additional initial phase shift of the next additional retransmitted signal pulse respectively.EFFECT: technical result is reduction of probability of correct detection masked objects by space SAR.1 cl, 2 dwg
Radiometer hardware function determination method // 2622899
FIELD: radio engineering, communication.SUBSTANCE: method is carried out by placing the control object radiometer antenna in the viewing area, the object scanning by the radiometer antenna along the azimuth and the elevation angle, forming the radiometric and optical images of the area, containing the control object with the adjacent background; Y and X matrix formation, respectively, the radiometric and optical imaging, X matrix segmentation by the amplitudes contrast, X matrix representation as the reference radiometric image of the control object, and the subsequent mathematical Y and X matrices processing to obtain the A matrix, which is the matrix representation of the radiometer hardware function.EFFECT: definition of the radiometer hardware function correct value in conditions of its operation to ensure the possibility of obtaining the radio heat images of the observable objects.2 cl, 6 dwg

ethod of identification of objectives (versions) // 2622888
FIELD: radio engineering, communication.SUBSTANCE: with the help of two typical single-position radar stations synchronized in time measurement, the amplitude diagrams of the signals reflected from pairs of different targets in the group in the same range of viewing angles of at least 20°-30°, and the coefficients of correlation of pairs of signals reflected from them are calculated in each pair of targets. When the correlation coefficient K1.2 is reflected from the first and second targets of the signals of the first pair within the range of 0.85±0.15 believe that two false goals have been identified. After this, the amplitude diagrams of the second target pair, consisting of an identified false target and an unidentified third target, are measured. If the value of the correlation coefficient of KL, 3 is less than 0.5, it is considered that the third target is an identified warhead. Similarly, the measurement of other pairs of targets, composed of an identified false target and still unidentified, is performed until all targets in the target group are pairwise measured and identified.EFFECT: identification of a target in a group of targets consisting of several warheads and false targets.2 cl, 1 dwg

ethod for detecting vehicle wheel // 2622407
FIELD: transportation.SUBSTANCE: detection is performed by emitting the electromagnetic measuring beam (6), registering the frequency of the reflected measuring beam (6) over time as the received signal (E), and detecting changes (10, 11, F) of a particular type in the received signal (E) as the wheel (1), wherein an on-board device (15) is installed in the vehicle (2), in which information (D) is stored, determining, at least, the indirect vehicle length (L). This method provides reading the said information (D) from the on-board device (15) via radio (23) and by measuring the speed (v) of the vehicle (2); calculating the duration (TF) of the vehicle passing (2) by the detection unit (5) based on the above information (D) and the speed (v); determining the time interval (W) in the received signal (E), demonstrating an approximately constant change (9) for the said duration (TF); determining the parasitic signal element (27) in the segment (25) of the received signal (E) immediately preceding the given time interval (W); and compensating the received signal (E) in the time interval (W) by the value of the signal parasitic element (27).EFFECT: increasing the detection reliability and efficiency of the signal evaluating process.15 cl, 7 dwg

Quasi-mono-pulse secondary radar // 2622399
FIELD: radio engineering, communication.SUBSTANCE: device contains an antenna, a block of controlled phase shifters, an adder, a transmit-receive switch, a receiver, a power divider, a controlled delay element, six keys, three decoders, three detectors, an amplitude detector and an angular discriminator connected in a specific way.EFFECT: increasing the accuracy of measuring the angular coordinates of the aircraft by eliminating its dependence on the doppler frequency addition in the response signals.3 cl, 6 dwg

ultifunctional integrated dual-band radar system for aircraft // 2621714
FIELD: radio engineering, communication.SUBSTANCE: method is implemented using a single architecture with a high degree of integration of software and hardware, such as an integrated antenna system, an integrated dual-band synthesizer of frequencies and control clock signals (CCS), and an integrated digital receiver (DR). The integrated software (IS) implements the control of the CCS, which synchronizes the operation of transmitters and receivers of two frequency bands and the DR preprocessing the radar signals. The main function of the IS, requiring high performance of the central processing unit, is to perform primary and secondary signal processing, including the formation of radar images (RI) of the underlying terrain and moving target marks. As a result, at the option of the operator, separate RIs or one integrated RI can be generated in each frequency range.EFFECT: creation of integrated dual-band small-sized multifunctional radar systems of centimeter and UHF-bands of radio waves.3 dwg

ethod and device for determination of nonmaneuvering aerodynamic target course using range square sampling // 2621692
FIELD: radio engineering, communication.SUBSTANCE: path velocity is determined by weighted summation of range square samples. The radial velocity is determined by weighted summation of range measurements and the heading angle is calculated in the middle of observation interval . The course is calculated using the formula , where is the azimuth. Then, the ambiguity of the course definition is eliminated, the course determination errors are evaluated. The users are given the course value with a smaller error.EFFECT: increased accuracy of determination of the course of a nonmaneuvering aerodynamic target.2 cl, 6 dwg, 2 tbl

Space observation method // 2621680
FIELD: radio engineering, communication.SUBSTANCE: according to the method, in each azimuthal position of the radiation pattern in the transmission mode, the digital antenna array generates a fan transmitting radiation pattern in the elevation plane, in the receiving mode, the received reflected signals from the antenna element outputs are represented as digital samples from which, by weighted summation, in the angle plane, a directivity pattern with needle-shaped rays. Neighboring rays overlap at half-power level when detecting objects, measuring their range and angle coordinates a monopulse method of signal processing for each of the neighboring pairs of receiving beams is used. The azimuthal coordinate of the detected objects is the current azimuthal position of the radiation pattern. When the antenna system is rotated, the azimuthal position of the transmitting and receiving radiation patterns is maintained by electronically scanning them in the direction opposite to the rotation of the antenna system, until the angular shift of the antenna reaches the value of Δθobs. After that, the hopping movement of the transmitting and receiving radiation patterns is carried out by electronically scanning them to the next azimuthal position, which differs from the previous one by an angle Δθobs. along the antenna system rotatation pattern.EFFECT: reduction of review time and improving the accuracy of the measurement object coordinates.4 dwg

Device for remote measuring mutual element displacement of buildings and structures // 2621473
FIELD: measuring equipment.SUBSTANCE: invention relates to instrumental means of monitoring conditions of buildings and structures, in particular measuring of mutual displacements of their structure elements through an active interferometer operating on the basis of comparing the phases of transmitted and simultaneously received signals in the form of electromagnetic waves in the microwave range. The device is a microwave active interferometer and comprises two transceiving units operating at different frequencies of the probing radiation and each consisting of a generator of continuous harmonic oscillations connected to the Y-circulator entry, the output of which is low-loss connected to the transceiver antenna and the output of which is high-loss connected to quadratic mixer input connected to the input of the intermediate frequency amplifier by its output, equal to the difference frequency of the probing radiation of generators of continuous harmonic oscillations. Also, the device comprises a phase detector connected by its input to the outputs of the intermediate frequency amplifiers in the said units and its output connected via an analog-to-digital converter to the input of the microcontroller to form a discrete time dependence of the mutual displacement of the two building and structure elements. The transceiving units are rigidly fixed one on two mutually displaceable elements of a building or structure, and the transceiving antennas of the said units are directed at each other.EFFECT: increasing the contactless meter range of mutual displacement.3 cl, 1 dwg

ethod of determining geometric flight height upon aircraft landing // 2620590
FIELD: measuring equipment.SUBSTANCE: information about the pressure and temperature at the assumed contact point of the aircraft (AC) of the runway obtained at the meteorological station, is automatically transferred to the control center, it is transferred from the control center to the aircraft and automatically entered into the onboard computer. The information entered into the onboard computer is sent back to the control center to automatically confirm the correctness of its introduction. Onboard the geometric height of the aircraft above the planned touch point is determined on the basis of the data on static pressure and the temperature of the inhibited flow measured by redundant meters and also obtained from the control center.EFFECT: increasing the accuracy and integrity of the altitude measurement characteristics upon aircraft landing due to more complete air temperature measurement.3 cl, 1 dwg

Device for radar location image forming in radar location station with synthesization of antenna aperture // 2619771
FIELD: radio engineering, communication.SUBSTANCE: device for radar image forming in the radar station with a synthetic antenna aperture comprises a transmitting device and a pulse extending device, and also a series-connected receiving device, an opening device, an analog-to-digital converter, a memory device, a control device, a sampling device, a signal module determining device, an integrator, a minimum determining device, a two-dimensional matrix progressive forming device, a range compressing device, an azimuth compressing device, a radar image displaying device. The memory device is connected through its first and the second outputs to the first input of the two-dimensional matrix progressive forming device and the second input of the sampling device, respectively, and the second and the fourth inputs - to the second output of the two-dimensional matrix progressive forming device and the second output of the sampling device, respectively, in addition, the transmitting device is connected to the second input of the opening device through the pulse expanding device.EFFECT: enchanced radar location image resolution on slope distance and expanded dynamic range by synchronizing a start of echo signal recording with a start of next sensing.1 dwg

ethod of measurement of the polarization matrix of the object scattering // 2619769
FIELD: radio engineering, communication.SUBSTANCE: method of measuring polarization matrix scattering object when sensing at a single carrier frequency by orthogonal polarizations simultaneously emit respective orthogonal over radio structure is then received at the same time all the orthogonally polarized components reflected by the object radio signals, output signals each corresponding on receiver channel polarization is fed to the filters, each of which is aligned with one of the radio signals emitted, the measurement is carried out in two or more sensing period. As the emitted radio signals on orthogonal polarizations, a pair of signals, the encoded additional sequences that vary from one period to the probe so that the two additional sequences are developed, and one of their addition is inverted and then compressed matched filters in each of the periods of sensing signals are combined and the parameters determined by the combined radio signal corresponding to the polarization matrix elements of the scattering object.EFFECT: improved accuracy of measurement of the polarization scattering matrix of the object by eliminating the influence of side lobe signals, matched filter is compressed, and by eliminating the impact of cross-correlation components due to the passage of signals through uncoordinated filters.1 dwg
 
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