Research on Online Calibration Technology of Wideband Radar Target Simulation System

Aiming at the problem of amplitude and phase distortion of echo signal generated by wideband radar target simulation system, this paper estimates the amplitude and phase characteristics of the system by online extraction of amplitude and phase error, and the method of joint calibration with active e...

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Autor principal:	Wu Haosheng, Pan Minghai, Hu Haipeng
Formato:	article
Lenguaje:	ZH
Publicado:	Editorial Office of Aero Weaponry 2021
Materias:	\|wideband radar target simulation system\|online calibration technology\|active equalizer\|fir filter\|chaos particle swarm optimization algorithm Motor vehicles. Aeronautics. Astronautics TL1-4050
Acceso en línea:	https://doaj.org/article/f9081496f79444d9b8d53cfbf9a0ce4e
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spelling	oai:doaj.org-article:f9081496f79444d9b8d53cfbf9a0ce4e2021-11-30T00:13:41ZResearch on Online Calibration Technology of Wideband Radar Target Simulation System1673-504810.12132/ISSN.1673-5048.2020. 0099https://doaj.org/article/f9081496f79444d9b8d53cfbf9a0ce4e2021-06-01T00:00:00Zhttps://www.aeroweaponry.avic.com/fileup/1673-5048/PDF/1628469504161-1647936395.pdfhttps://doaj.org/toc/1673-5048Aiming at the problem of amplitude and phase distortion of echo signal generated by wideband radar target simulation system, this paper estimates the amplitude and phase characteristics of the system by online extraction of amplitude and phase error, and the method of joint calibration with active equalizer and FIR filter is used to calibrate the amplitude and phase distortion of echo signal. The active equalizer is used to calibrate the insertion loss which varies with the frequency to avoid the deterioration of the signal dynamic range during the calibration. The amplitude distortion of nonlinear high-frequency oscillation and phase distortion are calibrated by FIR filter which is designed by using chaos particle swarm optimization algorithm. After joint calibration, the amplitude fluctuation of the output signal of the wideband radar target simulation system is less than 1.3 dB, and the group delay fluctuation is less than 2 ns. The amplitude and phase characteristics of the system have been greatly improved, and the dynamic range of echo signal has no obvious deterioration. Therefore, this joint calibration method can be applied to the calibration of wideband radar target simulation system.Wu Haosheng, Pan Minghai, Hu HaipengEditorial Office of Aero Weaponryarticle\|wideband radar target simulation system\|online calibration technology\|active equalizer\|fir filter\|chaos particle swarm optimization algorithmMotor vehicles. Aeronautics. AstronauticsTL1-4050ZHHangkong bingqi, Vol 28, Iss 3, Pp 91-98 (2021)
institution	DOAJ
collection	DOAJ
language	ZH
topic	\|wideband radar target simulation system\|online calibration technology\|active equalizer\|fir filter\|chaos particle swarm optimization algorithm Motor vehicles. Aeronautics. Astronautics TL1-4050
spellingShingle	\|wideband radar target simulation system\|online calibration technology\|active equalizer\|fir filter\|chaos particle swarm optimization algorithm Motor vehicles. Aeronautics. Astronautics TL1-4050 Wu Haosheng, Pan Minghai, Hu Haipeng Research on Online Calibration Technology of Wideband Radar Target Simulation System
description	Aiming at the problem of amplitude and phase distortion of echo signal generated by wideband radar target simulation system, this paper estimates the amplitude and phase characteristics of the system by online extraction of amplitude and phase error, and the method of joint calibration with active equalizer and FIR filter is used to calibrate the amplitude and phase distortion of echo signal. The active equalizer is used to calibrate the insertion loss which varies with the frequency to avoid the deterioration of the signal dynamic range during the calibration. The amplitude distortion of nonlinear high-frequency oscillation and phase distortion are calibrated by FIR filter which is designed by using chaos particle swarm optimization algorithm. After joint calibration, the amplitude fluctuation of the output signal of the wideband radar target simulation system is less than 1.3 dB, and the group delay fluctuation is less than 2 ns. The amplitude and phase characteristics of the system have been greatly improved, and the dynamic range of echo signal has no obvious deterioration. Therefore, this joint calibration method can be applied to the calibration of wideband radar target simulation system.
format	article
author	Wu Haosheng, Pan Minghai, Hu Haipeng
author_facet	Wu Haosheng, Pan Minghai, Hu Haipeng
author_sort	Wu Haosheng, Pan Minghai, Hu Haipeng
title	Research on Online Calibration Technology of Wideband Radar Target Simulation System
title_short	Research on Online Calibration Technology of Wideband Radar Target Simulation System
title_full	Research on Online Calibration Technology of Wideband Radar Target Simulation System
title_fullStr	Research on Online Calibration Technology of Wideband Radar Target Simulation System
title_full_unstemmed	Research on Online Calibration Technology of Wideband Radar Target Simulation System
title_sort	research on online calibration technology of wideband radar target simulation system
publisher	Editorial Office of Aero Weaponry
publishDate	2021
url	https://doaj.org/article/f9081496f79444d9b8d53cfbf9a0ce4e
work_keys_str_mv	AT wuhaoshengpanminghaihuhaipeng researchononlinecalibrationtechnologyofwidebandradartargetsimulationsystem
_version_	1718406900924547072

Research on Online Calibration Technology of Wideband Radar Target Simulation System

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