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(394526)
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)
ethod of aircraft coordinates determining based on using two directional angles and one elevation angles // 2645549
FIELD: aviation; measurement technology.SUBSTANCE: invention relates to an aircraft position determining method. To determine the aircraft position in a Cartesian coordinate system, marks are made from two measuring points with known coordinates of one direction angle and two elevations with subsequent processing of the received information on the computer. Determining the aircraft coordinates by solving the geometric problem of a straight circular cone intersection with a vertical axis of symmetry and the center in the second measuring point with a straight line passing through the first measuring point.EFFECT: enabling increase in the accuracy of the aircraft coordinates determining and reducing the processing time of information when determining them.1 cl, 2 dwg
Video system for recording of the emergency situations on navigable rivers // 2645425
FIELD: video control devices.SUBSTANCE: invention relates to devices for video monitoring of water areas with the provision of recording of the emergency situations, associated with the movement of ships on unauthorized courses or their presence in restricted areas. Declared video system for recording of the emergency situations on navigable rivers contains installed, at least on one support, rotary video cameras of the visible range with an Ethernet interface and a CCD matrix, standard network devices for the video data archiving and processing, detection, identification and recognition of objects by the operator, as well as small-sized laser light sources for creating luminous reference points, forming a reference grid for determining of coordinates of the observed objects. At that, a laser-acoustic system is additionally installed on the support for obtaining video data of the underwater part of the observed object relative to the axis of the ship's track of the observed object.EFFECT: technical result is broader functional capabilities.1 cl
ethod for determining location of a quasi-continuous broadband source of radio-emission by mobile complex of radio-technical supervision // 2645297
FIELD: radio engineering and communication.SUBSTANCE: invention relates to radio engineering and can be used in the development of multi-position complexes of radio technical supervision. Method consists in: receiving a quasi-continuous broadband signal by antenna array at each receiving position of the radio technical supervision complex, forming intervals of observation with duration tsup., on which the correlation matrix of signals Rxx(m) of the input realization of a quasi-continuous wideband signal is calculated according to a certain formula, calculating a difference correlation matrix of signals ΔRxx(m) = Rxx(m)-Rxx(m+l), calculating the determinant of the difference correlation matrix with the subsequent formation and normalization of dependence for constructing position lines; calculating the correlation function of dependence by the corresponding formula, determining the path difference for each position with respect to the maximum of the enveloping mutual correlation function by the system of mutual correlation processing, estimating the coordinates of the source of quasi-continuous broadband signal by the time difference method on the basis of analysis of the time dependence of the determinant of the difference-correlation matrixes of the signals generated in the elements of the antenna arrays at receiving points of the radio technical supervision complex.EFFECT: achieved technical result of the invention consists in improved accuracy of positioning the sources of a quasi-continuous wideband signal by a complex of radio-technical supervision and reduced time required to locate sources of radio emission.1 cl, 5 dwg

ethod of network information processing in automated system of processing and exchange of radar information // 2645154
FIELD: radio engineering, communication.SUBSTANCE: invention can be used in automated control systems based on the principles of network information structure, in part related to the transfer and exchange of radar information (RI) in the automated system of processing and exchange of radar information (ASPE RI). RI sources emit through gateways telecode information on servers all RI as it becomes available, the servers process the arriving RI, consumers receive RI according to requests previously reporting to the servers, the type of information they wish to receive, and in the case of lack of required information the servers receive it from the computer network from the other servers and give out to consumers. The primary routing of data and their filtering according to the lifetime criteria in the network and the source address are performed, after which additional algorithms for filtering and routing of RI are realized. In this case, the network nodes are combined into a virtual peer-to-peer network.EFFECT: reducing the time for radar information to pass through the network of the system by removing irrelevant, defective, unwanted information, excluding the transmission of repeated information, improving the quality of information and reducing the requirements for the capacity of communication lines due to increased processing speed of radar information on servers.1 dwg

Active-pulsed television night vision device // 2645122
FIELD: physics.SUBSTANCE: active-pulsed television night vision device contains an observation unit, a television channel, a control and synchronization unit, a pulsed infrared illuminator and a frequency division unit. The device additionally includes a series-connected laser rangefinder and a pump current amplitude adjustment unit, a delay presetting unit and a strobe pulse width adjustment unit.EFFECT: reduced observed object search time and improved quality of the resulting image by automatical determination of the distance to the object using a laser rangefinder.1 dwg

ethod for detecting underwater objects (options) and device for its implementation // 2645016
FIELD: hydraulic engineering.SUBSTANCE: invention relates to the field of hydroacoustics and can be used in sonar detection devices for underwater objects intended for use in areas with a high level of reverberation interference in the conditions of shallow water, complex bottom relief and water surface disturbance. Technical result is achieved by creating a method for detecting underwater objects, which consists in that the underwater controllable space is irradiated with a sonar signal, the signals reflected from the object are received by the receiving hydroacoustic antennas spaced apart in the vertical and horizontal planes, the emission-reception of the phase difference between the pairs of signals received by the respective pairs of receiving antennas spaced apart in the horizontal and vertical planes is measured at each instant during the cycle by the phase centers in the plane of the front of the reflected signal in which measurement and accumulation are performed for some predetermined number of cycles of the sample characteristic function for some predefined set of values of the arguments, the obtained estimates of the characteristic function for the current cycle and for the predetermined number of preceding cycles are compared, and a decision is made based on the comparison results about the presence or absence of a useful signal, the value of the bearing and the angle of its source location. In addition, the comparison of the sample characteristic functions is performed by multiplying the characteristic function in the current emission cycle by the complex conjugate characteristic function averaged over the previous cycles and normalized to its modulus. In addition, to decide whether a useful signal exists, the squares of the moduli of the result of comparing the characteristic functions are averaged and the value obtained is compared with the predetermined threshold. In addition, the value of the phase of the components of the result of the comparison of the characteristic functions is used to determine the angular position. Method options and a group of devices for implementing the method are given.EFFECT: technical result consists in the elimination of measurement errors caused by the statistical dependence of the phase difference estimates for the vertical and horizontal measurement channels, increase in the accuracy and decrease in the resource intensity by using the measurement of the characteristic function of the joint distribution of the phase difference estimates of the signals in the vertical and horizontal measurement channels.12 cl, 5 dwg

ethod of determining displacement of surface ship with its noise direction-finding // 2645013
FIELD: physics.SUBSTANCE: to implement the method, receiving a noise signal by a hydroacoustic antenna, analogue-to-digital converting, detecting, low-frequency filtering, calculating the signal spectrum in the frequency range of fluctuations caused by the rolling of a surface ship are carried out. Then the trend of the spectrum is determined, the centered spectrum is formed, the root-mean-square deviation is determined for the centered spectrum, the normalized spectrum is formed. K of frequency windows of different widths with average values are formed at the frequency of each harmonic of the spectrum n, an array of k×n values of the average power of the process fluctuations is formed in each of the k×n frequency windows, the largest value is selected from the array of k×n values of the average power of the process fluctuations, its frequency in dimension n is remembered. The greatest value is compared with the detection threshold and a decision is made about the presence/absence of the low-frequency fluctuations due to rolling. The displacement of the surface ship is determined according to the table dependence of the displacement from the stored frequency n of the low-frequency signal fluctuation.EFFECT: increasing the noise immunity of the method and providing the possibility of determining the displacement of a surface ship for any previously unknown width of the low-frequency fluctuations of its signal caused by rolling on sea waves.2 dwg
ethod of identifying space objects of artificial origin in outer space // 2645001
FIELD: physics.SUBSTANCE: identification of space objects of artificial origin in outer space includes the use of laser location to scan the surface of space objects. Light-reflecting elements are applied to the surface of these objects, the reflection spectrum of which contains information about the object. This coating is made in the form of equidistantly arranged strips. Irradiation of a space object is carried out by two parallel laser beams. And the distance between the rays is less than the width of the bands of the retroreflective coating and more than the distance between these bands.EFFECT: increasing the reliability of identifying space objects of artificial origin in outer space.1 cl

ethod of space discrimination of distance in solving problem of positioning of mobile means by rho-rho fixing in surface-mounted local radio navigation system // 2644762
FIELD: radio engineering.SUBSTANCE: invention relates to radio engineering and is intended to improve the accuracy of determining the location of mobile means based on the signals of key stations of surface-mounted local radio navigation system (LRNS). This result is achieved due to the fact that the method of space discrimination of distances in solving the problem of positioning of MM by rho-rho fixing in surface-mounted LRNS includes measurement of distances ri (i = 1, 2, …, n) from the MS with unknown coordinates to the key stations of the LRNS with known coordinates Pi, i = 1, 2, …, n, filtration of measured distances in median filters, calculating the errors between the original distances and their evaluation after filtering, and then transmitting the received errors to the selection control unit for calculating the greatest error and formation of key’s control command to turn off the line, preventing the transmission of estimates of distances with the greatest errors to the MM coordinate calculation unit.EFFECT: technical result is high accuracy of locating a mobile means (MM).1 cl, 6 dwg

easurement of reference spectra of marine surface exploration // 2644628
FIELD: test and measurement equipment.SUBSTANCE: meter is made on the basis of the microwave generator in the frequency-tightening mode, loaded on the wave-guide section as part of a series-connected directional coupler, attenuator, phase shifter, horn antenna at the end of the waveguide section; part of the energy of the generator through the directional coupler is transmitted to the measuring path as part of a series-connected cavity resonator in the form of a short-circuited section of the waveguide, power regulator, detector, charge amplifier, tracking filter, spectrum analyzer and recorder.EFFECT: technical result: high metrological characteristics for the amplitude and frequency of the sea surface to be measured for the purpose of calibrating the remote sensing routes of coastal zone water pollution.1 cl, 4 dwg, 1 tbl

Navigation system // 2644616
FIELD: navigation system.SUBSTANCE: invention relates to the field of radar and can be used in coastal radars of surface situations. Technical result is achieved due to the fact that the navigation system comprises a coastal radar, a ship's heading indicator, reflectors at the mooring place of the ship in the absence of a ship, a coastal direction sensor of the course to the mooring point of the ship with port encryption, a ship receiver of the course to the mooring place of the ship with port decryption, a coastal receiver of the course to the mooring place of the ship, interconnected in a certain way.EFFECT: achieved technical result is to increase the safety of the ship mooring while reducing the time of its holding.1 cl, 1 dwg

ethod of radar location determination of ground velocity of nonmaneuvering aerodynamic target by sampling products of distance and radial velocity and device for its implementation // 2644588
FIELD: radio engineering, communication.SUBSTANCE: invention can be used to determine the ground velocity of a nonmaneuvering aerodynamic target, mainly in radar location stations (RLS) with coarse measurements of angular coordinates. The measurement data of distance and radial velocity are multiplied, the value of the first increment of the product of distance and radial velocity for the RLS scan period is determined using a digital non-recursive filter (DNRF), the value is divided by the RLS scan period, the square root is calculated from the obtained result. The device implementing the method comprises a series-connected multiplier of distance and radial velocity, the DNRF, a divider by a scan period, a square root calculator.EFFECT: increased accuracy of the ground velocity determination.2 cl, 3 dwg, 3 tbl
ethod of radio-frequency source position determination using aircraft // 2644580
FIELD: radio engineering, communication.SUBSTANCE: invention relates to the methods of determining the location of the radio-frequency source (RFS), and can be used in navigation, direction-finding, location means for locating RFS from an aircraft, in particular an unmanned aircraft. The points of the arrangement of the aircraft in three-dimensional space at different instants of time act as focuses of the circles of Apollonius. The method is based on the reception of radio signals of the RFS in a given frequency band ΔF by a moving meter placed on the aircraft, measurement and memorizing primary coordinate-informative parameters used as electric field strengths amplitudes (AFSA), with simultaneous measurement and storage of secondary parameters (SP) - the space coordinates of the aircraft. The aggregates of the AFSA and the SP are measured and stored N≥5 times in the process of moving the aircraft along an arbitrary trajectory, N-1 coefficients of Apollonius circles are calculated, N-1 spherical surface (SS) of the RFS is formed, and coordinates of the RFS in space are the coordinates of the intersection point of the N-1 of the indicated SS of the RFS.EFFECT: improvement of positioning accuracy source in space through the use of spherical surfaces of the position of the source of radio emissions generated by rotating the circles of Apollonius around axes connecting relevant magic tricks.2 cl, 3 dwg
ethod of high-precision navigational sightings integrity definition in real time // 2644450
FIELD: radio engineering, communication.SUBSTANCE: protection levels that are compared with the corresponding alarm limits are calculated horizontally and vertically to determine the integrity of the high-precision navigation definition of the user. The calculation of the protection levels is made taking into account the inaccuracy in the formation of satellite clock corrections and orbit corrections in the corrective information from the wide-band functional augmentation, the value of error variance of primary measurements introduced by the ionospheric and tropospheric refractions in the propagation of the signal from navigation spacecraft (NS), receiver noise and multipath.EFFECT: increased reliability of high-precision navigation sightings in real time and reducing the time for the consumer to notify about the violation of the navigation integrity.5 dwg

Emergency radio beacon system for the aircraft or another vehicle // 2644403
FIELD: radio engineering and communication.SUBSTANCE: invention relates to the emergency radio beacon system intended for installation the aircraft. Mentioned technical result is achieved due to combining the functions of the automatic beacon and emergency beacon in one unit. Automatic emergency beacon system comprises the fixed base unit (1) configured with the possibility to be rigidly attached to the aircraft structure, and the removable beacon (2) configured with the possibility to be mounted in the detachable manner onto the mentioned fixed base unit (1), where the mentioned fixed base unit (1) comprises the electronic control unit (10) that includes the first connection means (11) for communicating with the aircraft data transmission and control bus (121) for receiving data from the data transmission bus and commands for activating the removable beacon (2) and the second connection means (12) for communicating with the removable beacon (2) for transmission of data and switching on commands to it; where the mentioned removable beacon (2) comprises at least one memory unit for storing the data that are being transmitted and the radio transmission unit configured to be connected via the mounting unit (1) to the external transmission antenna of the aircraft, and at least one abnormal event detecting means, which is connected to the electronic control unit (10) for switching on the mentioned beacon.EFFECT: technical result is wider range of equipment.18 cl, 3 dwg

Generator for exciting ultrasound radiators // 2644118
FIELD: physics.SUBSTANCE: generator device (GD) contains a concatenated signal conditioner, a control unit and an N-channel SPIKE, the outputs of which are connected to the inputs of the N-channel transformer adder through consistently included channels of the N-channel KUM and N-channel threshold sensor current, the first and the second outputs of which are connected through a low-pass filter and a current sensor with the first and the second excitation buses of acoustic emitters, and the output of the N-channel threshold current sensor is connected with the ban entry of the N-channel SPIKE, further the first and the second threshold amplifiers, an amplitude detector, an analogue-to-digital converter, and a digital adder are introduced, wherein the signal conditioner additionally contains a code on the data bus system amplitude and output permissions, and the control device includes a parametric amplifier with amplification and subtractive code bus device, the output of which is an output of the control device.EFFECT: increasing the reliability under condition of ensuring safe operation under conditions of a significant change in the load impedance, which ensures uninterrupted operation under extreme operating conditions.3 dwg

ethod of object detection on the remote background // 2643920
FIELD: image processing means; data processing.SUBSTANCE: method of detecting the object on the distant background includes receiving the signal in the ultraviolet range of waves to the receiving devices. During this at the day time the photocell is used, at night time the photoelectric multiplier is used. Receiving device is rotated from one horizon line to the opposite horizon line and backwards. Signal processing is carried out in order to detect the decrease in photocurrent values. At the same time, by means of decreasing the photocurrent values, the object itself is detected directly, or in the case of decreasing illumination, the decrease is detected according to the vapour trail.EFFECT: method for detecting the object on the remote background is proposed.1 cl, 2 dwg, 30 ex
ethod of earth surface relief measurement // 2643790
FIELD: radio engineering, communication.SUBSTANCE: earth surface relief measurement consists of sequential observation of the surface at a constant altitude of carrier flight and flight speed, at that the first observation session consisting of the emission of probing signals and reception of signals reflected from the Earth's surface with the synthesis of radar images (RI) under telescopic survey at the synthesis interval L, is carried out at the range to the surface R1, elevation angle θ1 and azimuth angle α1, different from strictly lateral, i.e. less than 90°. After the carrier is naturally moved by a synthetic aperture radar (SAR) to the distance of the base of the interferometer B, the second observation session is made over the same surface region at the range R2, azimuth α2, elevation angle θ2, also consisting in the emission of probing signals and the reception of signals reflected from the surface of the Earth with the synthesis of radar images during a telescopic survey in the synthesis interval L. After conducting a pair of observation sessions, a standard interferometric processing of the radar images pair is performed, and information on the relief of the underlying surface is extracted.EFFECT: measuring the relief of the Earth's surface and forming a digital relief model using a radar with synthesized aperture mounted on a radar carrier with synthesized aperture.1 dwg

Single-position multiplicative differential-relative method to determine location coordinates of radio radiation sources // 2643780
FIELD: radio engineering, communication.SUBSTANCE: method is based on the energy principle, which consists in measuring (or calculating) the RFS intensity field and at several space points with the known coordinates of its location. The RFS field intensity is measured on the RCP, and at the additional point (points) it is calculated. The virtual post (VP) is proposed as the additional point, the coordinates and parameters of its virtual antenna (directional diagram and suspension height) are specified. When using of n VP it is placed not in line with the RCP and is "spaced" from it by latitude and (or) by longitude at several arc minutes. The intensity calculation at the VP is based on the principle of the correlation dependence (CD) of the field intensities, created by the multiple radio-frequency sources within the given frequency range, located according to the data base in the RCP electromagnetic accessibility area and calculated by the certain program both for the RCP and for all given VP.EFFECT: determination of coordinates without using the location finders and radio receivers with autocorrelators.2 cl, 8 dwg

ethod for correcting axis direction of reflective sonic receiver to visualally difficultly observed or undisclosed sound sources // 2643690
FIELD: physics.SUBSTANCE: method for correcting the axis direction of the reflective sonic receiver includes the operation of receiving a sound by a parabolic reflector in the focus of which a directional microphone is placed. To the rim of the reflector with a diameter Dref the rod is rigidly attached, on which two additional microphones are symmetrically installed, the distance between which is changed in accordance with the inequality L1<Dref<L2, the output signals from these microphones are connected to the inputs of the summing amplifier through the resonant filters the resonant frequencies of which correspond to the inequality F1>Fres>F2. The output signal of the summing amplifier via a threshold device served by the registrar on which the maximum value of the signal is fixed is switched on the sound reception of the microphone placed in the focus of the reflector, and the output signal from the microphone connected through the filter with a bandwidth of 60 Hz to the amplifier, the output of which serves to the receiver. The directional diagram of additional microphones has a maximum in the forward direction of the reflector, and the microphone in focus - in the opposite direction.EFFECT: increasing the microphone reception level by at least 6 dB.6 dwg, 1 tbl

ethods and systems for workpiece monitoring // 2643619
FIELD: measuring equipment.SUBSTANCE: method for workpiece monitoring includes saving the data of the model associated with the workpiece, in the monitoring system and determination of the relative position of the meter of distance relative to the workpiece. The also method includes viewpoint calibration for the monitoring system with respect to the model based on the position of the distance meter relative to the workpiece, and measurement of the actual distance of one display element of the distance meter relative to the workpiece. Based on the data on the actual distance, workpiece compliance with the pre-established monitoring criteria is determined.EFFECT: accuracy and reliability of monitoring is increased.15 cl, 3 dwg
ethod of active direction finding of targets // 2643521
FIELD: radio engineering, communication.SUBSTANCE: direction finding method consists in sequentially probing adjacent angular directions in a given sector with a step of varying the angle providing the required angular resolution of the targets and constructing a direction-finding characteristic on the basis of which a decision is made about the presence or absence of targets. According to the invention, the sector of the direction-finding characteristic is subsequently probed at different frequencies, the range of variation of which is chosen such that, due to the existing difference in range to the targets, it is possible to ensure a change in the phase difference of the coherent signals reflected from them at the largest and smallest sounding frequencies by an amount of multiples of 2π, and the step of changing the frequency is selected so as to provide a form of direction-finding characteristic with detail, allowing to decide on the number of targets.EFFECT: increasing the angular resolution of the direction finder.5 dwg

Single-position method for determining coordinates of radio-frequency source location // 2643513
FIELD: radio engineering, communication.SUBSTANCE: method is based on the energy principle, which consists in measuring (or calculating) the strength of the RFS field and at several space points with known coordinates of their location. The strength of the RFS field is measured on the RCP, and is calculated at the additional point (points). A virtual post (VP), whose coordinates and parameters of its virtual antenna (directional pattern and suspension height) are specified, is proposed as an additional point in the method. When using n VP, they are "placed" not in line with the RCP and are "spaced" from it by latitude and (or) by longitude by several arc minutes. The calculation of the strength on the VP is based on the principle of the correlation dependence (CD) of the field strengths created in a given frequency range by a pularity of radio-frequency sources located in the electromagnetic accessibility zone of the RSC according t the data base and calculated by a certain program both for the RCP and for all given VP.EFFECT: determination of source location without the use of direction finders and radio receivers with autocorrelators.5 dwg, 1 tbl
ethod for determining coordinates of radio-frequency radiation source in three-dimensional space // 2643360
FIELD: radio engineering and communication.SUBSTANCE: invention relates to radio engineering and can be used in passive systems for locating radio-frequency radiation sources (RFRS), located on rough terrain. Essence of the invention lies in the arrangement of four receiving points (RP) located on unmanned aerial vehicles (UAVs) of "multi-copter" type in the area of the supposed location of RFRS. RPs are delivered to the specified area by means of an unmanned or manned medium-class aircraft. Composition of each RP includes a navigation-and-provision unit, non-directional antenna, panoramic receiver, transceiver. In the area where RFRS is supposedly located, the receiving points are distributed in space by command from the ground control and processing station (GCPS), thus forming the time-difference system (TDS) of location. Receiving points are located at the tops of the tetrahedron: peripheral RPs – at the vertices of its lower base, and the reference one – at the top above the base. In the generated TDS, signals from the navigation and time support units of each RP are used to determine their coordinates in space, high-precision binding to the own coordinate system of TDS and transfer of coordinate information about peripheral RPs to the reference one. Upon command from it, all RPs search for RFRS signal in the specified frequency range and when a signal is detected, it is relayed to the reference one. Reception and retransmission of RFRS signal by receiving points are carried out by their panoramic receivers and transceivers, respectively. On the reference RP based on the calculation of the correlation between the signal received thereon, and signals retransmitted from peripheral RPs, the coordinates of detected RFRS are computed and sent to GCPS. On the GCPS, the error value of the received coordinates is estimated and if the required value, set by the operator, is exceeded, recalculation of the coordinates of all RPs is carried out for their reconstruction. Such reconstruction of RPs with respect to RFRS is carried out until the error in determining its coordinates is established below the required value.EFFECT: achieved technical result consists in the decreased error of determining RFRS coordinates.1 cl, 8 dwg

ethod of height, aircraft actual velocity and aircraft velocity vector inclination measurement in relation to horizon, on-board radar device using method // 2643168
FIELD: measuring equipment.SUBSTANCE: one carries out the earth's surface sensing by virtue of the radar impulse in the direction of the AC roll axis, the reflected signal coherent reception with the acquisition of the two-dimensional radar image (RI) of the terrain in coordinates range-doppler frequency, the finding of the maximum doppler frequency (MDF) on range dependence according to the data of the RI, the generation of the original hypothesis on the AC coordinates due to the available aprior data, upon that, one iteratively specifies the hypothesis on the measurable parameters value by means of the MDF hypothetical curve design, which corresponds to the hypothesis, generates the error signal of the MDF hypothetical curve towards the MDF curve according to the RI data, converts the MDF curve error signal into the measurable parameters error signal, summarizes it with the specified hypothesis, repeats the cycles and returns to the consumer in tracking the measured height, actual velocity and AC velocity vector inclination angle parameters in relation to horizon.EFFECT: measurement of the height, actual velocity and angle between the velocity vector direction and the horizontal plane when using the system, which is oriented in the direction that is in coincidence with the aircraft roll axis, with the help of the single-beam antenna.3 cl, 4 dwg

Single-position multiplicative virtual-real method for determining coordinates of radio-frequency source location // 2643154
FIELD: radio engineering, communication.SUBSTANCE: method is based on the energy principle, which consists in measuring (or calculating) the strength of the RFS field and at several space points with known coordinates of their location. The strength of the RFS field is measured on the RCP, and is calculated at the additional point (points). A virtual post (VP), whose coordinates and parameters of its virtual antenna (directional pattern and suspension height) are specified, is proposed as an additional point in the method. When using n VP, they are "placed" not in line with the RCP and are "spaced" from it by latitude and (or) by longitude by several arc minutes. The calculation of the strength on the VP is based on the principle of the correlation dependence (CD) of the field strengths created in a given frequency range by a pularity of radio-frequency sources located in the electromagnetic accessibility zone of the RSC according t the data base and calculated by a certain program both for the RCP and for all given VP.EFFECT: determination of source location without the use of direction finders and radio receivers with autocorrelators.2 cl, 7 dwg, 2 tbl
Antenna viewing device // 2642895
FIELD: radio engineering, communication.SUBSTANCE: device contains a base, a mirror, a control unit, power antenna, which includes located based on rotation in azimuth mirror drive, output pinion which cinematically connected with cog-wheel installed on pipe fixed bearings and located coaxially to the axis of rotation in azimuth mirror, tilt mirror with output drive gear and rotating (rotary joint), which consists of a waveguide and ultrahigh-frequency tract. A fork plate is fixed in the upper part of the pipe. Inside the pipe there is a casing with a waveguide integrated into it, which is a rotating part of a non-contact microwave transmission. The stationary part of the rotational transition is fixed inside the sleeve, on the outside along the shaft is gear rod, cinematically connected with the output gear of the mirror tilt located on the base of the drive. In the inner part of the sleeve bearings are fixed, inner mobile rings are installed on the lower part of the casing. Centering on the circumference of the upper part of the casing is carried out by bearings installed in the through grooves located along the circumference of the pipe along its axis of rotation and in coincident slots on the outer part of the casing. The lateral surfaces of the bearings touch the side surfaces of the grooves of the pipe and, accordingly, the side surfaces of the casing slots, while the outer rings of these bearings run, respectively, the inner surfaces of the casing slots in the same direction. In coaxial located holes of the side parts of the fork plate, in bearings, shafts are installed with hooked on them bracket tilt axis which is perpendicular to the axis of rotation of the mirror azimuth. At one end of the bracket and mirror at the opposite end of the counterweight is placed, in the form of strips with central hole, which enshrined the rod. The console part of the rod is inserted into the hole of the clutch rollers arranged symmetrically to the rod in a vertical plane and horizontal connected with two sides symmetrically to the rod bearings, mounted on the bracket holder, still pinned to the top of the casing.EFFECT: improving the balancing of the moving mirror of the antenna and simplifying the design of the entire antenna device.5 dwg

ethod of remote determination of sea surface slope dispersion // 2642888
FIELD: physics.SUBSTANCE: sea surface is vertically probed by a pulse laser, the reflected pulses are recorded and the dispersion of sea surface slopes is calculated based on them. Preliminarily the significant height of waves hs is defined, the minimum duration of the probing pulse τm is calculated from condition τm= 4hs/c, where c is the speed of light. Taking into account the obtained value τm probing pulses of the calculated duration are formed and the sea surface is probed with such pulses.EFFECT: increasing the accuracy of determination of sea surface slope determination.1 dwg
ethod for determining coordinates of radio emission source // 2642846
FIELD: radio engineering, communication.SUBSTANCE: invention can be used for high-precision determination of the coordinates of radio emission sources (RES) with the aid of aircrafts, emitting continuous or quasicontinuous signals. The method of determination of the RES coordinates is RES signal receiving on three aircrafts, their relaying to the central point of processing and computing RES coordinates using radial velocity differentials, while additionally Doppler frequency shifts are there as a maximizing argument of amplitude spectrum of the product of a signal from one repeater by a signal from another repeater, subjected to complex pairing and shift for a time delay, which is defined as a maximizing argument of the function module of the mutual correlation of converted signals, obtained by multiplying the original signals by the same signals, subjected to complex pairing and temporary shift by the interval T, exceeding the value, which is inversely proportional to twice the spectrum bandwidth.EFFECT: reduced hardware costs when implementing a method based on the products of functional electronics, and when implementing a method, based on digital signal processing hardware, improving the response time by reducing the amount of arithmetic operations.1 cl
Determination method of value of space charge of clouds // 2642830
FIELD: measuring equipment.SUBSTANCE: value of the bulk density of a cloud charge moving at a certain altitude is determined from the value of the speed of motion V, the induction of its own magnetic field ΔB and geometric parameters of the location of the central part of the space charge relative to the point of registration of magnetic induction in accordance with the formula: , where ρ- bulk charge density of the cloud (Cl/m3); ΔB - magnetic induction of the moving space charge of the cloud (T); V - velocity of space charge motion (m/s);Hh and - the height of the upper and lower boundaries of the clouds, respectively (m); L is the width of the array of moving clouds along a line perpendicular to the velocity vector (m); α - the angle between the vertical and the direction of the center of the space charge from the point of registration of magnetic induction (rad); μ0 is the magnetic constant equal to 4π×10-7 (Gn/m). Average speed and direction of movement of clouds (V) in the monitoring area determined by measurements of the vertical profile of wind speed on network upper-air stations using radiosondes, as well as satellite observations. Value of induction ΔV of the moving clouds volume charge determined by the difference of the inductions of the geomagnetic field registered at the nearest network of geomagnetic observatories, where there is no satellite imagery of clouds, and in a similar geomagnetic observatory, where there is a passage of potentially dangerous clouds. The width of the cloud array L along a line perpendicular to the velocity vector and the height of the upper cloud boundary Hh are determined from satellite observations. The height of the cloud bottom is determined by the data of the meter of the lower cloud boundary at the nearest meteorological station that is part of the hydrometeorological network.EFFECT: simplification of the determination of bulk density of thunderstorm charge based on the use of network geomagnetic, meteorological and satellite data, expansion of the possibilities of its determination in the case of moving clouds along their own magnetic field, which in turn opens the possibility of obtaining predictive estimates of thunderstorm development.1 cl

Interference suppressor // 2642808
FIELD: physics.SUBSTANCE: invention is designed to isolate signals of moving targets against the background of passive interference during the group rearrangement of the carrier frequency of the probing pulses. Interference suppressor includes the first and the second delay units, a weighting coefficient unit, the first and the second complex multipliers, a weight block, a complex adder, a complex conjugation unit, a switching unit, an accuracy unit, a wiring unit and a two-channel switch interconnected in a certain way and carrying out a coherent processing of the original samples. The signal from the moving target and passive interference, significantly exceeding the useful signal in the quadrature phase detectors, is transferred to the video frequency and converted in such a way that the interference residues are compensated.EFFECT: increasing the signal extraction efficiency of moving targets.11 dwg

ethod and device for recognizing airplane destruction // 2642526
FIELD: security facilities.SUBSTANCE: invention relates to systems for detecting objects by reflecting radio waves from the surface of said objects and can be used in radio location to recognize the destruction of an aircraft. Technical result is achieved by the fact that in the method for recognizing the destruction of an aircraft, which consists in emitting an electromagnetic energy in the direction of an airplane, receiving signals reflected from the aircraft, obtaining a spectrum of the reflected signal, carrying out a narrow-band filtering of the Doppler frequency components, additionally determining the presence of the Doppler frequency at a frequency caused by movement with a speed close to the velocity of the shock front, ensuring its reproduction, indicating and signaling on the presence of this signal. Device implementing the method comprises a series-connected antenna and a radar, a filter tuned to the Doppler frequency caused by movement at a speed close to the velocity of the shock front, a speaker, a detector, a threshold device and an indication circuit, the filter input being connected to the output of the radar, the output of the filter is connected to the inputs of the speaker and detector, whose output through the threshold device is connected to the indication circuit.EFFECT: achieved technical result – provision of the possibility of recognizing the destruction of an aircraft.2 cl, 1 dwg

High-accuracy method with use of double label for moving targets position fixing in mine // 2642522
FIELD: measuring equipment.SUBSTANCE: high-accuracy position fixing method with the use of double label includes a method for locating a position fixing of an object of the first type in a mine and a method for position fixing of a moving object of the second type in a mine; the method includes the steps of: setting two position labels horizontally or vertically on a moving object and performing them to communicate with two base positioning stations installed along the roof timber and obtaining the location of the moving object in real time by constructing an optimisation function between the distance determined according to the received signal strength indicator and the estimated distance between the label and the base station of position fixing and searching for the minimum value; solving the optimisation function by an iterative process, including the step of determining the initial iteration value and the iteration step in the left/right direction. The method is applicable for determining the location of objects with a strip profile parallel to the digging face (for example, a mine trolley or a cutter) or objects with a strip profile perpendicular to the digging face (for example, a working).EFFECT: improved accuracy of position fixing of a moving object in the mine.2 cl, 2 dwg
ethod of non-satellite navigation // 2642507
FIELD: radio engineering, communication.SUBSTANCE: radio-frequency tags are installed on road signs, traffic lights, poles, trees, buildings, and structures, as well as other artificial objects and non-living objects suitable for this purpose, while their information data characterizing the uniqueness of each label location are contrasted with analogous data printed on an electronic map and/or stored in the database. Tag coordinates are assigned relative to the boundaries of a city or other locality object, an area, a region, an administrative unit or a state by building a grid, where the southernmost point of the boundary is a zero-numerical value of the index (number) in the position indicated by a single letter of the alphabet, the western point - in the position indicated by a different letter of the alphabet. The coordinates of the remaining tags following the tag(s) with a zero index for either of the two letter positions are obtained by adding, for example, units to the indexes of the tag positions. Tag coordinates consider prohibiting and prescribing traffic signs located at intersections, branches and forks of the road directly, where they are installed, as well as on adjacent intersections, branches and forks. Paving the object route is carried out by connecting the next tag (s) from the initial point, at which the user is located, nearest to the desired point of the tag(s) across all tags lying between them, and then selecting the minimum distance.EFFECT: providing navigation services in a zone containing RF tags at arbitrary trajectories of the user movement.5 cl, 3 dwg

Radar scanning method // 2642453
FIELD: radio engineering, communication.SUBSTANCE: in radar scanning method consisting in electronic and mechanical scanning by the phased array antenna beam with respect to the elevation angle and the azimuth in mechanical direction, change the scanning electron plane of the phased array antenna (FAA) by rotating or rocking of the FAA about the axis perpendicular to its plane, with the possibility to provide electronic scanning by FAA beam in the azimuth-angle sector for radar stations with one-dimensional electronic scanning when the rotation or rocking of the antenna in the azimuth plane is stopped.EFFECT: providing electronic scanning by the phased array antenna beam in the azimuth-angle sector for radar stations with one-dimensional electronic scanning when the rotation of the antenna is stopped in the azimuth plane.1 dwg
ethod of distance measurement // 2642430
FIELD: radio engineering, communication.SUBSTANCE: method consists of using a signal with quarter-phase multiplex, the in-phase and quarter-phase components of which are phase manipulated by binary pseudorandom sequences with different repetition periods.EFFECT: increasing the range of single-valued distance measurement by selecting aliquant repetition periods of pseudo-random sequences, which is defined as the smallest common multiple of product of a character number from one sequence by the clock frequency of the other.1 cl

Interference reject filter // 2642418
FIELD: electricity.SUBSTANCE: interference reject filter contains the first and the second delay blocks, a weight unit, the first and the second complex multipliers, a weight block, a complex adder, a complex conjugation unit, a switching unit, an accuracy unit, a switching unit, a two-channel switch, and a synchronizer interconnected in a certain way and performing coherent processing of the original samples. At the same time, optimal coordinated processing leads to an increase in the accuracy of interference compensation and the allocation of signals of the moving targets during the tuning of the carrier frequency against a background of passive interference with an apriori unknown Doppler velocity.EFFECT: increasing the efficiency of signal extraction of the moving targets.11 dwg

ethod of localizing sound source and humanoid robot using this method // 2642157
FIELD: physics.SUBSTANCE: localization method involves receiving sound signals from a source using a set of three microphones, selecting three pairs of microphones and for each pair calculating the generalized cross-correlation of the audio signals. The calculation is carried out for multiple values of inter-aural differences in time, the directional response power is calculated based on the generalized mutual correlations, the vector of inter-aural differences in time is determined, which corresponds to the peak of the directional response power, the direction of the sound source localization is assessed depending on the vector of inter-aural differences in time. In calculations, a set of delay vectors forming two sets of vectors is used. The first set for the signals received from the sole sound source, at an infinite distance from the microphones and the second set for the vectors that are inconsistent with the sound signals originating from the sole source. Each vector of the first subset is connected with the direction of the sole sound source localization, and each vector of the second subset is connected with the direction of the localization associated with the specified vector of the first subset, which is the closest to it in accordance with the Euclidean metric.EFFECT: increasing the accuracy of localization, simplifying calculations.10 cl, 12 dwg, 1 tbl

Location indication // 2642135
FIELD: measuring equipment.SUBSTANCE: method of determining the location of interest in the area, including the stages, at which at least the first acoustic source is placed in the first position in the location of interest and the second acoustic source is placed in the second position in the location of interest, while at least one of the first and second positions represent the external range of the location of interest, at least the first acoustic source and the second acoustic source are activated for the generation of the specified acoustic output signal, the distributed acoustic measurement is performed for at least one optical fiber, disposed at least partially in the abovementioned area, and the acoustic signals, detected by the abovementioned distributed acoustic measurement, are analyzed to detect the abovementioned specified acoustic sequence and to indicate the location of the at least abovementioned first acoustic source and the second acoustic source.EFFECT: determination of employee location accuracy.16 cl, 4 dwg
ethod of primary impulse-doppler range-finding of targets against background of narrow-band passive jamming // 2641727
FIELD: measuring equipment.SUBSTANCE: method is implemented by measuring cycle of sounding of quasi-continuous signals adapted to the target environment with optimized modulation parameters and receiving-processing characteristics of the location signals. This provides a model for pulse-Doppler radar stations (PD RS) effective Doppler selection of targets on the background of passive jamming with the ability of primary ranging them for one-two cycle of sounding with accuracy commensurate with the accuracy of range measurements by Vernier method with multiple busting of the used pulse repetition rates.EFFECT: improvement of noise immunity of primary range-finding of found solitary or not resolvable by angle and speed group of dispersed across the range objectives that was previously discovered amid intensive passive jamming with narrow-band energy distribution, such as reflections from the Earth's surface, local objects and low-speed moisture targets.4 cl, 7 dwg

Rejection filter // 2641647
FIELD: radio engineering, communication.SUBSTANCE: filter comprises the first and the second delay units, a weighting coefficient unit, the first and second complex multipliers, a weight unit, a complex adder, a complex conjugation unit, a switching unit, an accuracy unit, a switching unit and a two-channel switch and a synchronization pulse generator, which are interconnected in a certain way and carry out a coherent processing of the reference counts.EFFECT: increased efficiency of extraction of moving target signals.11 dwg

Noise filter // 2641644
FIELD: radio engineering, communication.SUBSTANCE: noise filter comprises the first and the second delay units, a weighting coefficient unit, the first and second complex multipliers, a weight unit, a complex adder, a complex conjugation unit, a switching unit, an accuracy unit, a switching unit and a two-channel switch and a synchronization pulse generator, which are interconnected in a certain way and carry out a coherent processing of the reference counts.EFFECT: increased efficiency of extraction of moving target signals.11 dwg

ethod of determining angular coordinates to directed optical radiation source // 2641637
FIELD: physics.SUBSTANCE: method includes linking the position of the photosensitive elements of the matrix photodetector of the opto-electronic coordinator to the Cartesian coordinate system, receiving the radiation, separating, at least, six photocells of the matrix photodetector, the signals at the output of which are equal to each other, determining their coordinates and calculating their elevation angle and the azimuth of the radiation source. In addition, during measurement, the total signal S1 of the selected six photocells is determined, the plane of the matrix photodetector is tilted along the elevation angle, the total signal S2 of the selected six photocells is repeatedly determined, and the obtained values of the signals S1 and S2 are compared. If S1>S2, then it is determined, whether the source of optical radiation belongs to the upper half-space of the angle range from 0° up to 90°. If S1<S2, then it is determined that the source of optical radiation belongs to the upper half-space of the angle range from 90° up to 180°.EFFECT: removing restrictions on the ambiguity of determining the elevation angle.2 dwg

Ultrasonic system and method for measurement using shear wave // 2641067
FIELD: medicine.SUBSTANCE: system comprises an ultrasonic probe capable of sequentially transmitting a push pulse to generate a shear wave to each of a plurality of focal spots in the region under study, each of the plurality of focal spots has a mutually differing depth value; and receiving ultrasonic echoes adjacent to each of the plurality of focal spots; a shear wave detector that indicates the property of the generated shear wave in the focal spot and a property estimation means performed with a possibility to evaluate the second parameter, which indicates the property of the region under study, as a function of the first parameters extracted in a plurality of focal spots. The method for property measurement carried out using the system and its computer product.EFFECT: expanded arsenal of tools to assess the mechanical properties of tissue.15 cl, 5 dwg

Cascode differential operational amplifier // 2640744
FIELD: electricity.SUBSTANCE: cascode differential operational amplifier includes: input differential cascade with an overall emitter chain, consistent with the first bus of power supply, the first, second, third, fourth additional transistors, bases of the first and the second additional transistors are connected to the first current output if differential input cascode, bases of the third and fourth additional transistors are connected to the second current output of differential input stage, the combined first and second emitters of additional transistors are connected with the emitter of the second output transistor, combined emitters of the third and fourth additional transistors are connected to the emitter of the first output transistor, headers of the second and third additional transistors are connected with the first current output of input differential cascade, and collectors of the first and fourth additional transistors are connected to the second current output of the differential input cascade.EFFECT: increase of the open gain on the voltage of operational amplifier.2 cl, 11 dwg

Excitation circuits for non-expensive transducer arrays // 2640444
FIELD: medicine.SUBSTANCE: group of inventions includes a device, a permanent machine-readable medium, and a method for ultrasonic imaging device operation. The device contains an array of transducer elements distributed to a plurality of groups for group work, and a processor configured to control the operation of the transducer elements array. The transducer elements array is controlled by the processor for visualization. The said array is used in parallel and in time with the use of transducer elements of the current one of the said groups of the plurality of transducer elements. Visualization is performed element-by-element independently. The groups of plurality of transducer elements are arranged in pairs in space with respect to each other to be element-wise connected to each other. Each group of plurality transducer elements only contains nonadjacent transducer elements, grouped according to the status of spatial location for all pairs of transducer elements of the first group, one or more transducer elements from one or more other groups are located between two transducer elements of a pair of transducer elements. Each transducer elements from the transducer elements array has a surface with a geometric center. The transducer elements from the transducer elements array are arranged so that the line passing through the geometric centers of at least some of the transducer elements of one group does not completely surround the transducer elements of any other group.EFFECT: group of inventions allows automated, simple, low-interference ultrasonic visualization through non-phased visualization and independently, as well as through distribution of transducer elements by groups of multiple discontinuous transducer elements, and due to the fact that the line passing through the geometric centers of some transducer elements of one group does not completely surround the transducer elements of any other group.17 cl, 9 dwg

ethod of ground mapping of onboard radar in front review sector // 2640406
FIELD: radio engineering, communication.SUBSTANCE: signal is coherently emitted and stored in the process of the antenna direction pattern beam scanning near the line of the side-looking airborne radar (SLAR) carrier path, when the antenna direction pattern beam, moving gently, covers the entire front sector, the accumulated signal is signal processed, namely by determining and compensating phase progression, determining the slew rate of signal frequency modulation, allocation of signals, accumulated on the left and right of the line of the side-looking airborne radar carrier path, signal spectral processing, multiplex of signals, accumulated on the left and right of the line of the carrier path, then the same area of Earth surface is again scanned with coherent accumulation of the reflected signal, the reaccumulated signal is processed similar to the first signal, while the allocation of signals with positive and negative slew rates of the frequency modulation is performed together with the compensation of phase difference relative to the first accumulated signal, after processing of both signals the obtained signal amplitude arrays are summed element by element and a radar image is formed from the total array of amplitudes.EFFECT: increasing the azimuth resolution near the line of the side-looking airborne radar carrier path.3 dwg

Distance measuring of small targets with large action range // 2640399
FIELD: physics.SUBSTANCE: claimed device for measuring distance to a target by means of a range finder (1) comprises of: a laser pulse emitter (2), a receiver (3) of laser echo signals (31) scattered back by the target, including a spatial detection device (10) that contains at least one photodiode, installed as an integrator and configured to provide a so-called spatial signal, and a time detection device (11) that comprises of at least one photodiode connected to a transimpedance circuit and configured for supporting a so-called time signal, a device (4) for processing a spatial signal and a time signal, which contains a target distance calculation unit (17), wherein the time signal is in the form of a data frame that is a record of data detected during a predetermined period of time, characterized in that the processing device (4) comprises of: a time signal post-integration device (16) coupled to the target distance calculation unit via the output, a selector (14) of time signals transmitted, depending on the spatial signal, to the post-integration device, connected to the spatial detection device (10) and to the time detection device (11).EFFECT: increase in the range of the laser range finder.17 cl, 7 dwg

ethod for determining location of satellite communication earth station // 2640395
FIELD: radio engineering, communication.SUBSTANCE: invention can be used when searching for and locating the positions of the Earth stations (ES) of satellite communication - the interference sources of trunks with the direct satellite retransmitters (SR) on the geostationary orbit. Simultaneously a sequence of discrete samples of the retransmitted signal levels of the desired ES is recorded, received by the fixed station of the satellite radio and beacon signal of the SR, through which the signal of the desired ES received by the fixed station of the satellite radio is retransmitted. As a result of processing the received sequence programmatically, the groups detailing wavelet coefficients are received that retain or change their values due to the dynamics of the signal levels of the desired ES and the beacon signal of the SR caused by the passage of their tracks through the region of space distributed hydrometeors. As a sign of the similarity of the dynamics of the adopted sequences, the increase, decrease or preservation of wavelet coefficients with the same indices unchanged are considered. To estimate the similarity of the dynamics of the received sequences from the comparison of neighbouring wavelet coefficients in the coefficient groups, one-dimensional arrays Aq and Bq are formed, where q is 1, 2 ...Q - numbering of positions. In the case of coincidence of elements of arrays Aq and Bq with the same indices, sign 1 is produced, in the case of mismatch - sign 0. The similarity of the dynamics of the received sequences is estimated by the specific weight of the number of coincidences obtained on the basis of summing the results of comparisons of the elements of the arrays Aq and Bq with the same indices.EFFECT: simplifying the implementation of the method and eliminating the limitation of functionality in the territory with a low density of earth stations.3 dwg

ethod of complex calibration of position finder- correlation interferometer on mobile carrier // 2640354
FIELD: radio engineering, communication.SUBSTANCE: method is carried out through the introduction of a new set of operations for determining a plurality of angle sectors, where conditions for measurements are not provided, formation of a plurality of sectors where measurement conditions are provided, measurements of geometric dimensions of the carrier and the position finder and creation of a three-dimensional model of the carrier with the position finder mounted on it, definition of vectors of amplitude-phase distributions for each direction by the finite element method, processing of results of measurements and calculations, and determining the calibration vectors.EFFECT: improving the accuracy of calibration of the mobile position finder - correlation interferometer in azimuth and elevation sectors of the angles, where the conditions for measurements are not provided, while maintaining high accuracy of calibration in azimuth sectors where conditions for measurements are provided.1 tbl, 1 dwg
 
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