METHOD OF RADAR SURVEYING OF EARTH AND NEAR-EARTH SPACE BY RADAR WITH SYNTHESIZED ANTENNA APERTURE IN BAND WITH AMBIGUOUS RANGE WITH SELECTION OF MOVING TARGETS ON BACKGROUND OF REFLECTIONS FROM UNDERLYING SURFACE AND RADAR WITH SYNTHESIZED ANTENNA APERTURE FOR IMPLEMENTATION THEREOF Russian patent published in 2021 - IPC G01S13/90 

Abstract RU 2740782 C1

FIELD: physics.

SUBSTANCE: invention relates to the field of radar ranging and is intended for use in the development of airborne and comic-based synthetic aperture radars (SAR). Radar with synthesized antenna aperture, which realizes method of radar survey of Earth and near-Earth space in range ambiguous in range with selection of moving targets on background of reflections from underlying surface, contains: bank of pulsed characteristics of range coordinated filter (CF), five blocks of fast Fourier transform (FFT), digital probing radio signal generator, analogue-to-digital receiving-transmitting antenna-amplification system, digital radio hologram memory unit (DRH), a unit for dividing range elements into groups, seven multipliers, a unit for calculating a three-dimensional array of pulsed characteristics of azimuth CF, four units of inverse FFT, two units for combining groups of range elements, a unit for calculating correction functions, two units for calculating amplitudes, an indicator of the underlying surface, a recrampling unit for correcting the period of sampling the azimuth signals, a unit for calculating a four-dimensional array of pulsed characteristics of the azimuthal CF for all values of the radial velocity Vr, a unit for calculating azimuthal rate corrected Vx, a unit for calculating a four-dimensional array of common thresholds, a unit for calculating a four-dimensional array of local thresholds, a unit for calculating a four-dimensional array of peaks of neighboring elements, a unit for calculating a four-dimensional array of maximum thresholds, a unit of a comparator, a unit for calculating maximum values of a four-dimensional array of pixels of radar images detected by a radar detector along the dimensions of radial Vr and azimuthal Vx velocities, an indicator of a DC.

EFFECT: technical result is construction of a radar image (RI) of a fixed underlying surface and detection of moving targets (MT) on a background of reflections from the underlying surface in a wide range of ambiguous shooting band using ultra-wideband probing radio pulses with a period of repetition and wave form varied from radio pulse to radio pulse and minimum loss of radar potential tending to decibel as the pulse duration of probing radio pulses increases.

2 cl, 12 dwg

Similar patents RU2740782C1

Title Year Author Number
METHOD FOR FORMING RADAR IMAGES IN RADARS WITH ANTENNA SYNTHESIS APERTURE 2022
  • Buslaev Aleksej Borisovich
  • Mariam Mokhammad Khasan
  • Muravev Nikita Pavlovich
  • Nepomnyashchij Maksim Mikhajlovich
  • Ryazantsev Leonid Borisovich
RU2801361C1
METHOD OF DETERMINING TERRAIN ELEVATION HEIGHT OF A RADAR WITH SYNTHESIZED ANTENNA APERTURE 2019
  • Babokin Mikhail Ivanovich
  • Gorbaj Aleksandr Romanovich
  • Tolstov Evgenij Fedorovich
  • Leonov Yurij Ivanovich
  • Pastukhov Andrej Viktorovich
  • Stepin Vitalij Grigorevich
  • Lavrenyuk Dmitrij Sergeevich
RU2707556C1
METHOD OF GENERATING DETAILED RADAR IMAGES IN A RADAR STATION WITH SYNTHESIZED ANTENNA APERTURE FRAME 2018
  • Drobot Igor Sergeevich
  • Ryazantsev Leonid Borisovich
  • Kupryashkin Ivan Fedorovich
  • Likhachev Vladimir Pavlovich
  • Kokov Renat Ruslanovich
  • Gareev Marat Shamilevich
RU2710961C1
METHOD OF GENERATING IMAGE OF SURFACE IN SYNTHETIC APERTURE RADAR STATION 2012
  • Lozhkin Igor' Petrovich
  • Chezganov Nikolaj Fedorovich
  • Frolov Aleksej Jur'Evich
  • Zagorodnij Vladimir Glebovich
RU2511216C1
METHOD OF COMPENSATION OF SIGNAL PHASE INCURSIONS IN ONBOARD RADAR SYSTEM AND ONBOARD RADAR SYSTEM WITH SYNTHESIZED APERTURE OF ANTENNA FOR FLYING VEHICLES 2004
  • Artem'Ev Aleksandr Ivanovich
  • Rogov Vjacheslav Jakovlevich
  • Suslov Leonid Leonidovich
RU2271019C1
RADAR WITH INVERSE SYNTHESIZING OF APERTURE AND MULTIFREQUENCY PROBING SIGNAL 1999
  • Mitrofanov D.G.
  • Silaev N.V.
RU2152626C1
RADAR STATION WITH PULSE-BY-PULSE CARRIER FREQUENCY TUNING, NEURAL NETWORK RECOGNITION OF OBJECTS AND INVERSE ANTENNA APERTURE SYNTHESIS 2011
  • Mitrofanov Dmitrij Gennad'Evich
RU2439611C1
METHOD FOR FORMING A SURFACE IMAGE IN A RADAR LOCATION WITH SYNTHESIZATION OF ANTENNA APERTURE WITH ELECTRONIC CONTROL OF A BEAM 2016
  • Makarov Pavel Aleksandrovich
  • Suslyakov Dmitrij Yurevich
  • Tagantsev Vladimir Anatolevich
  • Filippov Dmitrij Leonidovich
  • Frolov Aleksej Yurevich
  • Koltyshev Evgenij Evgenevich
  • Yankovskij Vladimir Tadeushevich
RU2617116C1
METHOD FOR GENERATING IMAGE OF THE GROUND SURFACE IN RADAR STATION WITH ANTENNA APERTURE SYNTHESIS 2016
  • Solovev Gennadij Alekseevich
  • Chugunova Vera Alekseevna
RU2614041C1
METHOD FOR GENERATION OF RADAR IMAGES IN RADAR STATION WITH SYNTHESIZED ANTENNA APERTURE WITH PRE-FOCUSING AND DEVICE IMPLEMENTING IT 2021
  • Buslaev Aleksej Borisovich
  • Gulyaev Grigorij Anatolevich
  • Ivannikov Kirill Sergeevich
  • Ivannikova Mariya Vladimirovna
  • Muravev Nikita Pavlovich
  • Ryazantsev Leonid Borisovich
RU2792964C2

RU 2 740 782 C1

Authors

Sonin Aleksandr Petrovich

Dates

2021-01-21Published

2019-11-26Filed