Patent
Apparatus and methods for moving target indicator simulation
TLDR
In this paper, a moving target simulator system for pulse Doppler radar includes a processor for processing received radar signal and transforming the signal into patterned pulses before subjecting the patterns to an 180 degree phase shift by a phase shifter.Abstract:
A moving target simulator system for pulse Doppler radar includes a processor for processing received radar signal and transforming the signal into patterned pulses before subjecting the patterned pulses to an 180 degree phase-shift by a phase-shifter. The system also includes a reference signal provided by a corner reflector located in proximity of the simulator. The reference signal and a phase-shifted signal from the simulator are processed by the radar equipped with a phase corrector circuitry to correct a phase drift problem associated with the use of a small antenna with the simulator.read more
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Patent
Intermediate frequency linear frequency modulation-pulse Doppler (LFM-PD) radar signal real-time processing system based on field programmable gate array (FPGA) and digital signal processor (DSP) and processing method
Wang Jun,Bi Yanxian,Zhang Yuxi +2 more
Patent
Instantaneous measurement of signal polarization
TL;DR: In this article, the polarimeter accepts series of samples representing horizontal and vertical signal components representing the polarization of a received signal, with each sample representing a magnitude separated in time by a predetermined angular resolution.
Patent
Radar high-frequency frequency-modulated doppler signal simulator
Dorukh Igor Georgievich,Ogurtsov Evgenij Sergeevich,Ogurtsov Sergej Fedorovich,Borisov Igor Viktorovich,Bojko Ivan Nikolaevich,Savitskij Oleg Anatol Evich +5 more
TL;DR: In this article, a radar high-frequency frequency-modulated Doppler signal simulator is proposed for use in complex signal generators, as well as in modulating systems for testing and investigating radio engineering systems.
Patent
Radioelectronic target simulator
Baranov Sergej Yurevich,Budagov Pavel Levanovich,Kolodko Gennadij Nikolaevich,Krupnov Denis Sergeevich,Nazarkin Dmitrij Ivanovich,Rud Aleksandr Konstantinovich,Stelmakh Vladimir Stanislavovich,Sycheva Lyubov Aleksandrovna,Fomin Nikolaj Dmitrievich,Chinyakov Sergej Viktorovich,Shashin Nikolaj Aleksandrovich,Shelukhin Sergej Vladimirovich +11 more
TL;DR: In this article, a simplified functional scheme of the radar target simulator is presented, which does not require preliminary calibration of the blocks entering into it, which allows considerably to reduce the workplace preparation time for testing the RTS.
Patent
Antenna pattern test method and device, and storage medium
Tang Yijun,Chen Lei,Xue Tonghui +2 more
TL;DR: In this paper, an antenna pattern test method and device, an antenna and a storage medium are used to acquire echo data generated by an antenna emitting electromagnetic waves to a target scene, wherein the target scene comprises a rotating reflector apparatus (S301).
References
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Patent
Retro directive radar and target simulator beacon apparatus and method
TL;DR: In this paper, a radar target simulator and method especially useful with a pulse compression radar located in a remote, unattended, and unpowered, terrain is presented, and the capability for minimum discernible signal and radar power output evaluations are also provided.
Patent
Target detecting apparatus equipped with testing device for simulating targets at different ranges
TL;DR: In this article, a small aerial sample is fed to a circuit which imposes successive delays on the sample and feeds it back to the aerial at successive different times, and the successive delays are produced by a delay line and a feed-back loop containing an amplifier.
Proceedings ArticleDOI
Optimal loading factor for minimal sample support space-time adaptive radar
TL;DR: The intrinsic interference subspace removal (ISR) technique, which is a computationally and analytically useful form of diagonally loaded SMI method, is derived here and simulation results with synthetic data show that the maximum SINR indeed coincides with the proposed optimum loading factor in various data sample situations.
Patent
Doppler target simulator
TL;DR: In this article, the authors describe an arrangement simulating a moving target, complete with doppler phase shift, for a radar R. The transmitted signal is received by horn 10 from the radar and passed, via waveguide 12, to a phase shift section 14 comprising a plurality of ferrite rods and surrounding windings energized by a sawtooth wave from driver 30, and after reflection by short-circuited arms 18b and 18c, emits from the circulator via arm 18a for a second phase shift in the same direction of the first, in section
Patent
Radar terrain signal simulator
Abstract: To simulate the radar return from terrain of particular generic type (e.g. desert, forest, cultivated land) it is a known suggestion to employ closed-loop shift register with feedback suitable to produce particular "texture" of return from specified terrain. It is here disclosed to synchronize output of such register with azimuthal position of simulated search radar; but this alone gives "grainy" effect because "smeary" or slowly changing amplitude with range in PPI sweep is not matched by corresponding lateral, or azimuthal, "smear". This objectionable effect is overcome by providing three sets of output terminals on feedback register, giving outputs corresponding to shifts for azimuths N, N+1, and N+2. By buffing together the three outputs, an azimuthal variation at a slow rate, comparable with the variation with range, is obtained, giving a more deceptive (and thus better) simulation.