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(393877)
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)

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

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 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

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

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

Device for radar sensing substrate surface // 2640291
FIELD: physics.SUBSTANCE: device contains a transmitting part and a receiving part. The transmitting part includes a sequentially coupled high voltage power supply, a probe driver, and a transmit antenna, and the receiving part - a sequential coupled receiving antenna, a signal processing means, and a means for presenting the results of the signal processing. The signal processing means comprises a two-channel analog-to-digital converter, the outputs of which are connected to the inputs of the converter signal combining means for the transmission of the processing results to the presenting means.EFFECT: expanding the range of the processed values of signals coming in response to the feeding of probing pulses, which allows to receive information without distortions from different probing depths, practically excluding distortions related to the nonlinearity of the input characteristics of the receiving elements.6 cl, 8 dwg
ethod for determining coordinates of radio emission source // 2640032
FIELD: radio engineering, communication.SUBSTANCE: on the object, a radio signal (RS) is formed and transmitted in the form of three high-frequency harmonic oscillations with predetermined frequencies containing the specified high-frequency component and specified low-frequency components. When receiving and processing of RSs, the conditions specified in the method are satisfied. The RSs, received by each of the stations, are transmitted over the corresponding communication lines to a single center. It carries out quarter-phase reception of high-frequency RSs, received from each of the stations with specified frequencies of the local oscillators. The obtained analogue quarter-phase components are converted into digital quarter-phase components (DQPC). For each RS, DQPC, corresponding to the three-mentioned low-frequency harmonic oscillations, are sequentially formed. From the obtained DQPCs they form DQPCs, corresponding to the harmonic oscillations at difference frequencies, and based on the DQPCs they form DQPCs, corresponding to oscillation phase differentials with the same difference frequencies, but belonging to RSs from different stations. Based on the DQPCs formed by this method (considering time delays in forming and transmitting signals to communication lines) relative distances are expressly identified to the object from the phase centers of station antennas and, based on them, the spatial coordinates of the antenna phase center of the object are expressly identified.EFFECT: ensuring unambiguous definition of the spatial coordinates of the radio emission source, located in any point of space, with high accuracy.1 cl
ethod of target tracking and method of signal radiation and reception // 2639710
FIELD: radio engineering, communication.SUBSTANCE: in the method of tracking the target, based on the installation of the primary capture gate on the range measured with its detection using a probing signal with an unambiguous range with the subsequent development of the tracking gate, the areas of the gates are probed with signals providing the measurement of the Doppler target velocity. The achieved technical result for the second version of the method of signal radiation and reception is the use of the same signal structure for measuring (resolution) of the Doppler velocity as for the range measurement. The specified technical result is achieved by the fact that in the method of the signal radiation and reception during the measurement (resolution) of the Doppler velocity based on the formation of a signal with intrapulse modulation, the signal is emitted by separate parts, and when receiving their reflections, they are compressed in Doppler channels.EFFECT: reducing the time spent on tying target tracks and increasing the reliability of maintenance by reducing the size of the primary capture pulse gate, possibility of detecting especially dangerous high-speed targets in the first review.7 cl

ethod for determining speed of plasma turbulent movement in mesosphere and bottom thermosphere // 2638952
FIELD: physics.SUBSTANCE: method of determining the speed of the turbulent motion of the plasma at altitudes of the mesosphere and lower thermosphere includes the formation of artificial periodic inhomogeneities of the ionospheric plasma by affecting the ionosphere perturbation with radiation at a frequency above the critical frequency for the E-layer and below the critical frequency for the F-layer, the emission in the ionosphere pulse at the end of the disturbance at the same frequency and the same polarization, the reception of the signal backscattered by artificial periodic inhomogeneities of the ionospheric plasma, the measurement of the amplitude and relaxation time of the backscattered signal, the determination of the altitude dependence of the relaxation time of the signal backscattered by periodic inhomogeneities in the investigated altitudes h generated by perturbing radiation. According to the reduction of the backscattered signal amplitude at each altitude, the relaxation time of inhomogeneities τ(h) is determined, which in the absence of turbulent motions due to ambipolar diffusion τd(h) and the time difference τ(h) and τd(h) the speed of the turbulent motion of the plasma is determined.EFFECT: improving the altitude-time resolution and improving the accuracy of determining the speed of the turbulent plasma motion.2 dwg

ethod of radar ship identification // 2638939
FIELD: radio engineering, communication.SUBSTANCE: invention can be used in on-board radar stations (OBRS) with synthesizing the antenna aperture for identifying surface objects (ships). The specified result is achieved due to the fact that the radar (RL) image of a section of the sea surface with a detected RL mark, indicating the presence of an object on the sea surface, is subjected to processing using reference matrices containing images of RL shadows formed by ships and obtained on the basis of information on the form and location of the ship relative to the OBRS, and based on the results of this processing, a decision is made on the identity of the detected object to one ship out of a given list of ships to be identified.EFFECT: identification of ships on the sea surface, regardless of the characteristics of direct radar reflections from the elements of its structure, while the characteristic feature of the method is an increase in the probability of correct identification when the sea surface disturbance increases.7 dwg

ethod of measurement of object polarization scattering matrix with distortion compensation // 2638559
FIELD: radio engineering, communication.SUBSTANCE: method of measuring object polarization scattering matrix with distortion compensation when sensing at one carrier frequency by orthogonal polarizations respective structure orthogonal radio signals are simultaneously emitted, all orthogonally polarized components of radio signals, reflected from the object, the output radio signals of each receiver channel, equivalent in polarization receiver channel, is fed to the filters, each of which is associated with one of the emitted structure orthogonal radio signals. To compensate for the distortion caused by mistuning of used transmission and reception channels, the signals at the outputs of matched filters are multiplied by weighting factors, which are found prior to the radiation of probing signals by the location object on the basis of the analysis of the results of radar station operation, and then the parameters of radio signals are measured at the outputs of multipliers. The radio signals determine the relevant elements of the object polarization scattering matrix. The measured values of the main distribution frame elements of the object polarization scattering matrix are combined.EFFECT: increase in the accuracy of measuring the object polarization scattering matrix by compensating for the resulting distortions.1 dwg

ethod of space radar scanning (versions) // 2638557
FIELD: radio engineering, communication.SUBSTANCE: in the method of space radar scanning, consisting in electronic and mechanical beam scanning of a phased array (PA) in elevation and in mechanical scanning in azimuth, the power input is increased in the selected zone during the PA rotation in azimuth, moving the electronic scanning area to the zone by PA tilting due to its rotation about an axis perpendicular to its plane. In the method of space radar scanning, which is electronic and mechanical scanning and reducing direction pattern side lobes of the phased array towards the noise jammer, the area of electronic radar station space scanning with one-dimensional electronic scanning through PA rotating around an axis perpendicular to its plane, so that the direction of the noise jammer is moved to the area between the directions of the principal PA axes.EFFECT: accumulation of energy in the process of electronic beam scanning of phased array with one-dimensional electronic scanning and increased noise immunity, under the action of noise in the area of direction pattern side lobes of the antenna.2 cl, 2 dwg

ethod of space radar scanning (versions) // 2638550
FIELD: radio engineering, communication.SUBSTANCE: according to the method of space radar scanning, which is electronic and mechanical scanning in elevation and mechanical scanning in azimuth using a phased array in the review of the azimuth sector, where it is most likely that the high-speed and pin-point targets appear, electronic scanning is moved to an azimuthal plane by turning the phased array (PA) around an axis perpendicular to its plane. According to the method of space radar scanning, which is electronic and mechanical scanning in elevation and mechanical scanning in azimuth using a phased array in the review of the azimuth of the sector, where it is most likely that the high-speed or pin-point targets, electronic scanning is moved to an azimuthal plane by turning the PA around an axis perpendicular to its plane, and the electronic scanning is performed in addition to the mechanical scanning in elevation by changing the carrier frequency of the probing signal.EFFECT: ensuring fast scanning in azimuth and high antenna gain factor with flexible management of the antenna beam displacement in widely distributed radar stations with a phased array, which have one-dimensional electronic scanning in elevation.2 cl, 2 dwg

ethod of determining target angular coordinates using linear antenna array // 2638174
FIELD: radio engineering, communication.SUBSTANCE: radiation of probing signals, reception of reflected signals is performed not less than at two beam positions of the antenna array spaced apart in the angular coordinate, measuring the amplitudes of the received signals corresponding to these beam positions, determining the beam width, based on the beam deflection from the antenna array normal line, for its each angular position, and calculating the angular coordinate of the object. The measurement of the target azimuth relative to the carrier object is performed for a number of times, characterized by a change in the orientation of the carrier object in space. Then for each measurement, a line of possible target positions is aligned with another angular coordinate, taking into account the known pattern of curvature of the linear antenna array in electronic scanning. The lines of the target are shifted in accordance with the change in the orientation of the carrier object in space for the time interval between them and the point of intersection of the shifted lines is found for the target corresponding to the angular coordinates of the target.EFFECT: increasing the possibility of determining target coordinates when using a linear antenna array.3 dwg
ethod of determining distance to earth surface // 2637817
FIELD: measuring equipment.SUBSTANCE: method for determining the distance to the earth surface consists of emitting probing signals in the direction of the earth surface, using radio pulses having a carrier frequency ƒn as probing signals, duration ti, repetition period Tr, consisting of N monochromatic subpulses of duration τ with non-periodic phase-code internal pulse manipulation, which is performed by modulating M-sequences of initial phases of subpulses that take one of two values 0 or π, reception of signals reflected from the earth surface, matched filtering of the reflected signals, using codes, forming the modulating M-sequences, as a weight coefficient and determining the range to the earth surface. Retuning of the carrier frequency ƒn of radio pulses is done from the radio pulse to the radio pulse by a random equally possible law in each repetition period and the radio pulse repetition period, radio pulse duration and number of monochromatic subpulses are changed from the radio pulse to the radio pulse.EFFECT: improvement of the operation security in determining the distance to the earth surface.1 cl
ethod of the two-step radar scanning of space (options) // 2637784
FIELD: radio engineering, communication.SUBSTANCE: according to the method of two-stage radar scanning of space, including the range measurement of detectable target, the space is scanned by a composite signal consisting of a time-limited broadband signal and its parts, spread out over a period of time. And for the range resolution an interpulse signal is used and for the Doppler speed resolution and measurement its parts, spread out over a period of time, are used. The second option in the method of two-stage scanning of space, which includes the range measurement of the detectable target, the space is scanned by a composite signal consisting of a time-limited broadband signal and its parts, spread out over a period of time, the Doppler speed is defined, all the parts of the composite signal are coherently summarized at long range, and are checked for a match at short ranges.EFFECT: detection of the target, namely the detection of the fact of the presence of the target in the examined direction and the determination of its location - angular coordinates and range; in addition, for radar stations with short range - maintaining a high rate of view and the ability to allocate high-speed targets.5 cl

Radar detector for recognizing user movement // 2637493
FIELD: physics.SUBSTANCE: radar detector for detecting and recognizing, as a control signal, a hand gesture or a user movement and transferring it to a peripheral device. The invention uses information on the GPS or GLONASS position by additionally setting the receiving GPS unit to the radar detector in order to correct the incorrect operation of the radar detector in the environments, in which interference from unwanted signals can be received, for example, strong radio interference areas, in the areas of the central part of a city, where different signals are generated, etc. and also to allow the user to arbitrarily add (or delete) the non-notified area or the notified area.EFFECT: increasing the reliability of positioning, improving the driver's comfort when managing and preventing traffic accidents.18 cl, 10 dwg
ethod of increasing radiovision range without increasing radiated power level // 2636804
FIELD: radio engineering, communication.SUBSTANCE: method consists in reducing the distance between the object of observation and the aperture of its irradiation and reception, which is installed on an unmanned autonomous vehicle, which, in turn, is pushed to the object of observation in the direction of movement of the moving vehicle. In this case, in accordance with the radar equation, the required integral power of the probing signal, which is proportional to the fourth degree of the detection range of the object, decreases. The extended area of observation of the probable objects along the travel path of the moving vehicle is provided by a system of unmanned autonomous vehicles that is formed by their mutual location spaced along the direction of movement and by distance from the moving vehicle, each of which is at a distance less than the distance of the stable radio channel for receiving and transmitting data between the moving and unmanned autonomous vehicles.EFFECT: increase in the range of radio vision without increasing the level of radiated power, increase in the range of radio vision of the object along the travel path of the moving vehicle while maintaining a low level of radiated power.1 cl
ethod of two-step radar target detection // 2636578
FIELD: radio engineering, communication.SUBSTANCE: in the method of two-step radar target detection based on probing the direction in the second step, if the target is detected in the first step, according to the invention in the first step they allow the range targets, and in the second step - speed targets, while in the first step, they use the probing signal with high resolution in range, and in the second - in speed, while in the first step they use broadband probing signal, and in the second step - narrowband. In addition, in the second step, a sequence of signals with ambiguous range or reduced range resolution is used for probing.EFFECT: reducing the time spent on tying target tracks and increasing the reliability of maintenance by reducing the size of the primary capture pulse gate, possibility of detecting especially dangerous high-speed targets in the first review.4 cl

ethod for processing radar signals in mono-pulse radiolocation station // 2636058
FIELD: radio engineering, communication.SUBSTANCE: intermittent phase shift keying of the signal coming from the difference output of the mono-pulse radiolocation station, the vector addition of this phase-shifted signal with the signal coming from the total output of the mono-pulse radiolocation station, the transfer of the resulting signal to the intermediate frequency, its single-channel amplification, synchronous detection, coherent subpair accumulation of digitized values of the resulting signal, compensation of Doppler phase incursions of this with the time-frequency conversion of the accumulated values of the resulting signal, the separation of the sum and difference signals in the frequency domain, the determination of their absolute values, and the subsequent calculation of the corresponding mono-pulse relations taking into account the phase relationships of the extracted signals.EFFECT: increasing the accuracy and expanding the functionality of mono-pulse direction finding.8 dwg

Detector of ballistic missile maneuver by fixed sampling of range-radial speed product // 2635657
FIELD: radio engineering, communication.SUBSTANCE: fixed sampling of range-radial speed product is multiplied by predetermined weighting coefficients for determining the absolute difference between estimates obtained from samples of larger and smaller volumes, which provides about a twofold reduction in the number of blocks of the maneuver detector.EFFECT: simplifying ballistic missile maneuver detection scheme while increasing probability of maneuver detection.2 dwg, 3 tbl

ethod of target range and radial speed in radar station with continuous radiation determination and its realizing device // 2635366
FIELD: measuring equipment.SUBSTANCE: subject matter of the method resides in the reflected signal reception, its demodulation, in the demodulated beat signal memorization during the probing signal modulation period, in the determination of the frequency change rate of the linear frequency modulation (LFM) and in the target radial speed calculation by dint of the linear frequency modulation attended by the reference signal generation, in the demodulation of the memorized signal and in the range on target determination on the memorized signal frequency basis. The device for the method realisation comprises the frequency modulator, the high-frequency generator, the transmitting antenna, and also the receiving antenna, the first signals multiplier, the low-frequency amplifier, the frequency change rate meter of the signal LFM, the radial speed estimator, the reference signal conditioner, the second signal multiplier, the frequency analyzer and the range computer, and also the storage device and the timing device. The enumerated devices are linked to each other in a specific way.EFFECT: extending detection range and accuracy increase in ranging and radial speed of the high-speed targets with the radar stealth.2 cl, 1 dwg

ethod of security monitoring of two adjacent roads // 2634745
FIELD: physics.SUBSTANCE: invention can be used in cases of using a single-position radiowave detection device (DD) for signal cover of two adjacent roads, one of which has a bend. The method consists in setting up DD in a road section, where they adjoin at a distance not exceeding 80% of the maximum possible DD detection zone length (DZ), so that the DD is on the outside of the bend angle of the road, behind the road with a straight section; the DZ axis coincides with the bisector of the bend angle of the road; in itiating a DD alarm in the event of an intruder crossing its DZ; analyzing of the Doppler frequency addition of the reflected signal at the output of the DD signal processing circuit during the entire time the intruder was in its DZ; subsequent applying the algorithm of finding the intruder direction on the road with a straight section by the presence of a positive or negative Doppler frequency addition of the reflected signal and the determination of the motion along the road with a bend by the presence of an alternating Doppler frequency addition of the reflected signal.EFFECT: increasing the accuracy of indicating the direction of motion of the detected intruder and obtaining high reliability of the result using only one single-position radiowave detection device.8 dwg

Filter of interference rejection // 2634615
FIELD: radio engineering, communication.SUBSTANCE: invention is designed to extract the signals of moving targets against the background of passive interference during the group rearrangement of carrier frequency of probing pulses. The result is achieved in that the filter of interference rejection comprises the first, second and third delay units, a weighting coefficient unit, the first and second complex multipliers, a weight unit, a complex adder, a synchronization pulse generator, a complex conjugation unit, a switching unit, an accuracy unit, a switching unit and a two-channel switch, 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

Ultrasound obstacle detection system for moving mobile object // 2634603
FIELD: physics.SUBSTANCE: ultrasound obstacle detection system for moving a mobile object contains transmitting and receiving devices of the object detecting means made in the form of n transceiver transponders (TT) 1 located along the perimeter of the mobile object (MO) 2, the data processing unit consists of independent sampling channels (ISC) 3 of the analogue TT signals 1 containing the preliminary wideband operational amplifiers (WOA) 4, amplifiers (A) 5 for matching the level of signal preamplifiers and analog-to-digital converters, and analog-to-digital converters (ADC) 6, which provide the digitization of the analog signals, devices of further implementation of the digital processing algorithm and the signal registration, based on the programmable logic integrated circuit (PLIC) 7, of the clock generator (CG) 8, the pulsed voltage converter (PVC) 9, the USB 2.0 interface converter (IC) 10 for transmitting the measurement results, the transistor switches (S) 11 designed to implement digital control of the TT 1 according to the signals coming from the PLIC 7.EFFECT: determination of the distance to the obstacle with high accuracy, work in the locator mode with the ability to measure both very small and large distances.5 dwg
ethod of variable sea current identification according to radar observations data // 2634592
FIELD: measuring equipment.SUBSTANCE: method is based on the observational analysis by the multi-frequency dualpolarized super-high-frequency radar, which sends out and receives the scattered by the surface radio signal on two coaxial polarizations (same-sense polarizations) - HH (signal sending and reception on the horizontal polarization) and VV (signal sending and reception on the vertical polarization) - and on several operation frequencies within the range from 1 GHz to 20 GHz spread out in size no fewer than twice. The method is applicable within the conditions of the medium winds at the observation angle of 20-80° from the vertical line from the piled foundations or crafts.EFFECT: identification of the time and over a distance varying sea currents that are usually connected to the progressive internal waves by scales of around hundreds of metres - units of kilometres.1 cl

obile aerological complex // 2634486
FIELD: physics.SUBSTANCE: complex contains a hardware machine made on a wheeled chassis (1) with a cab (2) and a van-body (3), radioprobes, an antenna (8) for receiving signals from a radioprobe, and a radio station antenna (24). The hardware of the complex and the antenna (8) for receiving signals from a radioprobe are made radio-navigational. The antenna (8) for receiving signals from a radioprobe has a circular pattern, is equipped with a lifting mechanism (9) and mounted on the rear part of the van-body roofing (3). Between the van-body (3) and the cabin (2) there is an open compartment (15) for equipment, where a weather station (16) is mounted on a lifting mast, an electric unit (17) and gas cylinders (22).EFFECT: reduction of labour intensity and shortening of the preparation time of the complex for work with the radioprobe.4 cl, 3 dwg

ethod for determining speed module of ballistic object using production sample of range by radial velocity and device for its implementation // 2634479
FIELD: radio engineering, communication.SUBSTANCE: at time intervals equal to the review period T0, the range, the elevation angle, the radial velocity are measured in the radar stations (RS), and a sample of the ballistic object (BO) height and the product of the range by the radial velocity is formed. The estimate of the BO height is determined in the middle of the observation interval and estimate of the first product increment of the range by the radial velocity at the end of the observation interval with α, β filters. The geocentric angle is calculated between the radar and the BO in the middle of the observation interval according to the formula , where raver - the range to the BO in the middle of the observation interval, Re - the radius of the Earth, and the acceleration of gravity in the middle of the observation interval by the formula , where g0 - the gravity acceleration on the surface of the Earth. Further, the smoothed value of the BO velocity module is calculated in the middle of the observation interval in the unperturbed passive part of the trajectory according to the formula , where N is the number of measurements in the observation interval. The device for implementing the method consists of two α, β filters and geocentric angle calculators, gravity acceleration and a velocity module.EFFECT: increasing the accuracy of determining the velocity module of a ballistic object in the ground-based radar stations with coarse measurements of elevation angle, azimuth and range, and reducing the volume of the stored previous measurements.2 cl, 3 dwg, 4 tbl

ethod of anti-collision radio frequency identification on acoustic waves surface and the system of its implementation // 2634308
FIELD: radio engineering, communication.SUBSTANCE: method of anti-collision radiofrequency identification of labels on passive acoustic waves (PAW labels), consisting in simultaneous irradiating of at least two PAW labels with a frequently manipulated signal; obtaining a time-frequency matrix where the column numbers correspond to the pulse frequencies of the response signal from the labels, and rows - to time delays between them; filling the time-frequency matrix with diagonals; sequential shifting of columns; and obtaining labels identification codes. The system for carrying out the method additionally comprises a signal detecting unit, a pulse distance meter, a time comparison unit, an on-board unit, K-band filters, K-units of signal comparison.EFFECT: separation of signals from several labels in time and frequency domain and increase in reliability of identification code of each label in conditions of high collision probability.3 cl, 1 dwg

Interference rejection counter // 2634191
FIELD: physics.SUBSTANCE: interference rejection counter comprises: the first, the second and the third delay units, a weight unit, the first and the second complex multipliers, a weight unit, a complex adder, a sync generator, a complex conjugation unit, a switching unit, an accuracy unit, a switching unit and a two-channel switch.EFFECT: increasing the signal extraction efficiency of moving targets.11 dwg

Interference rejecting counter // 2634190
FIELD: physics.SUBSTANCE: interference rejecting counter comprises: the first, the second and the third delay units, a weight unit, the first and the second complex multipliers, a weight unit, a complex adder, a sync generator, a complex conjugation unit, a switching unit, an accuracy unit, a switching unit and a two-channel switch.EFFECT: increasing the signal extraction efficiency of moving targets.11 dwg
Two-stage method of radar target detection // 2633995
FIELD: physics.SUBSTANCE: in the method based on the sounding of the direction at the second stage, if the target is detected at the first stage, the presence of a moving target is detected at the first stage using a sequence of signals with ambiguous range, and at the second stage its location is determined.EFFECT: reducing the time spent on detection of a target in the passive jamming zone.1 cl

ethod of forming radar image in radar station with synthesized antenna aperture // 2632898
FIELD: radio engineering, communication.SUBSTANCE: method of forming a radar image in a radar station with a synthesized antenna aperture consists in probing, receiving, storing echoes, determining the moment of the sounding onset, constructing a two-dimensional matrix by line-by-line reading the stored echo signal records, compressing two-dimensional matrix in range and azimuth. During the storage of the received echo at the moments of the sounding onset, inserting of pauses is performed with a duration τi by its amplitude manipulation, and during the detection of the sounding onset, the absolute value of the stored signal is integrated within the sliding window, which is a time strobe with a duration τi a varying time offset from the zero value corresponding to the beginning of the echo storage to a value equal to the sounding period, the time position of the obtained integral minimum is determined, which corresponds to the moment of the sounding onset.EFFECT: increasing the resolution of the radar image at an inclined range and expanding the dynamic range by synchronizing the moment of the beginning of the echo recording with the next sounding onset.2 dwg

onopulse radar location station with automatic calibration // 2632477
FIELD: radio engineering, communication.SUBSTANCE: monopulse RLS comprises: a phased-array antenna with a sum-difference scheme and a system of power distribution between the channels, a three-channel receiver, analog-to-digital converters, a power amplifier, a signal generator, a calculator, a communication element configured in a certain way and connected to each other.EFFECT: elimination of calibration errors caused by reflections from objects located near the radiator and the monopulse feed, expansion of the nomenclature of monopulse radar location stations.3 cl, 2 dwg

ethod for detecting maneuver of ballistic object by sampling products of distance and radial speed and device for its implementation // 2632476
FIELD: radio engineering, communication.SUBSTANCE: absolute difference between the estimate of the first increment of the distance-radial speed product obtained from a sample of a larger volume and the estimate of the first increment of the distance-radial speed product obtained from a sample of a smaller volume are determined only from a sample of a larger volume. For this purpose, in the unit for estimating the first increment of the distance-radial speed product, the fixed sampling of range-radial speed product is multiplied by predetermined weighting coefficients for determining the absolute difference between estimates obtained from samples of larger and smaller volumes, which allows to simplify the method for detecting maneuver of ballistic object and device for its implementation.EFFECT: simplifying the method and device for detecting the ballistic object maneuver while maintaining a high probability of maneuver detection.2 cl, 2 dwg
ethod for identifying sea surface contamination // 2632176
FIELD: ecology.SUBSTANCE: invention relates to an area for monitoring the environmental contamination of shelf and coastal zones. The method comprises probing coastal areas containing reference areas with means installed on an aerospace carrier to produce synchronous images in the ultraviolet and near infrared regions with georeference of the images by the GLONASS positioning system, contrasting frames by forming synthesized matrices from the pixel relations of these images, extracting contours on the field of synthesized matrices, calculating identifiable signal parameters within the contours: space wave pattern F, fractal volume Ω, relief area Sp of wavy surface of the analyzed area, evaluating pollution state index (I) as a dependence on the product of the identifiable parameters .EFFECT: increased reliability of identification of sea surface anomalies, increased sensitivity of measurements.7 dwg
ethod of remote seawater salinity measurement // 2631267
FIELD: electricity.SUBSTANCE: in the proposed method, the specified controlled area of the sea surface is irradiated with microwave radio waves of a given vertical polarization frequency, the backscattered signal is recorded at the same polarization (vertical), the polarization of the radiator and receiver is made orthogonal and the same portion of the sea surface is probed at the same frequency, the backscattered signal is registered, after which, according to two successive soundings, the polarization ratio is calculated, according to which the salinity is calculated.EFFECT: increased accuracy of measuring the salinity of sea water by eliminating the effect of variability in the sea surface roughness on the result of measurements.1 cl

ethod for detecting vehicle wheel // 2631132
FIELD: transportation.SUBSTANCE: method for detecting a rotating wheel (1) of a vehicle (2) is proposed, characterized in that the wheel (1) is detected by estimating the Doppler shift of the frequency of the measuring beam (6) reflected by the wheel (1) and returned with the Doppler shift, emitted by the detector unit (5), past which said vehicle (2) passes. In the relative position (R) relative to the wheel (1), the vehicle (2) comprises an onboard device (15) capable of establishing the radio communication (23) with a transceiver (24) installed in a known position (L) in the detector unit. The method includes: measuring the direction (δ) and the distance (z) to the onboard device (15) from the transceiver (24) via the radio communication (23) between said devices and control of the radiation direction (δ, β, γ) or the radiation position (A) of the measuring beam (6) in accordance with the measured direction (δ) and the distance (z), and taking into account the aforementioned relative position (R) and the position (L). The relative position (R) is saved in the onboard device (15) and read from the onboard device (15) by means of the radio communication (23) for accounting at the above control.EFFECT: creating an improved method for detecting wheels, based on Doppler measurements.15 cl, 4 dwg, 1 tbl

ethod of determining azimuth of object with help of interpolated direction-finding characteristics // 2631118
FIELD: radio engineering, communication.SUBSTANCE: method of determining the target azimuth using the interpolated direction-finding characteristic includes processing the stored full azimuth sequence of signals from the output of the monopulse antenna system. The processing excludes signals below the level of reliability of the results determined by the amount of noise in the receiving path. Then, through the points lying to the right and left of the approximate direction to the target, formed by the set of angular positions of the monopulse antenna system and the corresponding signal values from the output of the sum-difference discriminator, interpolated curves of the third order, including these points, the azimuth corresponding to the point of intersection of these curves is the calculated azimuth of the target.EFFECT: adaptation of the use of a monopulse antenna system to improve the accuracy of target direction finding when exposed to factors that distort the direction-finding characteristics.3 dwg

ethod and system of determining target coordinates in request-response system // 2631117
FIELD: radio engineering, communication.SUBSTANCE: method of determining the target coordinates in the request-response system using a predetermined aiming direction of the antenna allows the combination of, at least, three parameters that reflect the target position, the position of the antenna carrier and the aiming direction of the antenna. The parameters used are the distance from the carrier to the target, the height of the target and the height of the carrier, the deviation of the direction to the target relative to the direction of the antenna aiming. The antenna is used, the directivity pattern of which is a funnel. As parameters, the angular position of the carrier in space is additionally used and the predetermined angular direction of the antenna on the target relative to the carrier and also the plane, in which the target is located (the base of the funnel) perpendicular to the direction of the antenna aperture and is obtained by the request-response system from the target and determined with using a digital calculating device (DCD) using a mathematical description of the antenna pattern, a deviation in the local coordinate system (LCS) of the direction antenna of the response signals from the plane perpendicular to the antenna aperture and passing through the center of the antenna aperture. This result is also achieved in that the system implementing the method located on the carrier includes an antenna directed to the target, a request-response system adapted to match, at least, three parameters representing the target position, a carrier position, and the direction of aiming the antenna to determine the target location, a DCD configured to calculate the target coordinates at any position of the carrier and the antenna on the carrier, as well as a height sensor and angular antenna position sensors directed to the target, wherein the first input-output of the request-response system is connected to the antenna directed at the target, the second input-output of the request-response system is connected to the input-output of the digital computing device, the first DCD input is connected to the height sensor output, the system also includes the angular position sensors of the antenna directed at the target, the output of which is connected to the second DCD input. The antenna is made with an aperture in the form of a one-dimensional ruler of radiators, in which the funnel corresponds to the angles of the direction deviation to the target from the plane perpendicular to the antenna aperture line.EFFECT: increasing the accuracy of determining the target coordinates at any position of the interrogator's antenna relative to the interrogator's carrier and at any position of the interrogator's carrier in space, in case of using an antenna in the form of a one-dimensional ruler of radiators, for which the radiation pattern is a funnel.2 cl, 3 dwg
ethod of radar detection for technical security equipment // 2630894
FIELD: radio engineering, communication.SUBSTANCE: two or more coherent electromagnetic fields (EMF) are formed and mutually compensated at the receiving antenna location. Mutually compensated electromagnetic fields are formed by their antiphase radiation with the consistent polarization and equal amplitude by the spatially separated transmit antennas. The spatial position of the transmit antenna is selected from the formation condition of the second from mutually compensated coherent EMFs by the reflection of the first of them from the underlying surface, and the receiving antenna is located at the total EMF interference minimum point. The phase, amplitude and polarity of the emitted EMF is subsequently selected, by measuring at the receiving antenna location point of the power flux density upto achieving its minimum value.EFFECT: increase of the detection area range and size.5 cl, 2 dwg

Shunting locomotive and method of its operation without driver // 2630859
FIELD: electricity.SUBSTANCE: shunting locomotive contains running gears, traction power transmission with a diesel generator set, feeding traction electric motors. At the end faces of the shunting locomotive, rangefinders of non-contact action are located, connected with the control device, which is connected to the excitation block of the traction generator. The locomotive contains a remote control device made in the form of an onboard specialized radio station, connected by a communication channel with the control device of the shunting locomotive. Rangefinders of non-contact action are installed at the level of automatic couplers, and their reading plane is parallel to the plane of the track. The reading line is formed by the intersection of the reading plane and the location plane of the automatic couplers of the carriage nearest along the motion, perpendicular to the track plane. The operation way of the shunting locomotive without the driver consists of continuous contactless monitoring of the reading line along the motion of the shunting locomotive and the stopping of the locomotive at the moment of coupling with the carriage.EFFECT: ability to use the shunting locomotive in the fully automatic mode.3 cl, 1 dwg

ethod of measuring angle of location (height) of low-yellow objects under small angles of site in radiological circuits of reviews with presence of interfering reflections from substrate surface // 2630686
FIELD: radio engineering, communication.SUBSTANCE: calculation of the elevation angle of the detected target is made on the basis of the distance and difference estimates in the estimation of the target azimuths measured when the vertical and oblique lines are inclined 45 degrees in the raytracing plane of the antenna system beams through the target at the same range.EFFECT: creation of a method for measuring the elevation angle of low-flying targets at small elevation angles in a three-axis radar of a circular view, which makes it possible to minimize the effect of the multipath phenomenon caused by reflections of echoes from the underlying surface.1 dwg
ethod of remote determination of sea current speed // 2630412
FIELD: radio engineering, communication.SUBSTANCE: method makes it possible to detect a sea current in the near-surface layer and remotely determine its speed with the help of a multifrequency UHF radar LX-bands operating on two coaxial polarizations (HH-radiation and horizontal polarization reception, VV-radiation and vertical polarization reception) and several spaced frequencies in the measurement of scattering from the sea surface in two directions: parallel and perpendicular to the wind. The method is applicable in a wide range of wind speeds and angles between the direction of sounding and the vertical from 20-25 to 80-85 degrees from pile bases or from ships.EFFECT: increase the accuracy of measurements of small-sized and mobile equipment.1 cl

ultifunctional small-sized radar system for aircrafts // 2630278
FIELD: radio engineering, communication.SUBSTANCE: multifunctional small-sized radar system for aircraft consists of a radio-frequency module (RFM) and an on-board computer (OBC). The RFM consists of a transceiver module and an antenna module including a waveguide-slot antenna array (WSAA), a drive, a four-channel microwave receiver, a circulator. The transceiver module consists of a transmitter, an intermediate frequency receiver (IF-receiver), and a synthesizer of frequency and clock signals (SFCS). The SFCS consists of a power supply, a control module, an emission signal generating module F0, a reference oscillator, a reference frequency oscillator and a base frequency generator.EFFECT: expanding the bandwidth.3 dwg
 
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