運動目標逆合成孔徑雷達成象
INVERSE SYNTHETIC APERTURE RADAR IMAGING OF MOVING TARGETS
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摘要: 運動目標逆合成孔徑雷達成象是根據(jù)旋轉(zhuǎn)成象和運動補償原理,利用寬帶發(fā)射信號進行距離分辨,利用目標相對于雷達視線的旋轉(zhuǎn)產(chǎn)生的多卜勒信息進行方位分辨。距離對準和運動補償是逆合成孔徑雷達成象的關(guān)鍵技術(shù)。本文概述了逆合成孔徑原理,分析了距離對準和運動補償問題,并給出了成象實驗結(jié)果。
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關(guān)鍵詞:
- 雷達成象; 逆合成孔徑雷達; 高分辨雷達
Abstract: Imaging of moving targets by inverse synthetic aperture radar (1SAR) is based on range-Doppler processing and motion compensation. High resolution along the range is provided by broad bandwidth of the transmitted signal, while accross the range (azimuth) provided by an aperture induced by the motion of the target. Range alignment and motion compensation are the key techniques of ISAR. ISAR principles are summarized and experimental results are given. -
Giovanni Corsin, et al, Classification of radar targets: an overview, Proc. 1984 Inc. Symp. on Noise and Clutter Rejection in Radars and Imaging Sensors, 1984.[2]G. Dike, R. Wallenberg, Inverse SAR and its application to aircraft classification, IEEE Int. Radar Conf.,1980.[3]C. C. Chen, H. C. Andrews, IEEE Trans. on AES, AES-16(1980) 1, 2-4.[4]K. K. Eerland, Inverse synthetic aperture radar: preliminary results, Physics Lab. TNO Report, No. PHL 1882-32, The Netherland, 1982.[5]A. L. Gorin, Proc. SPIE Int. Soc. Opt. Eng., 310(1981), 166-174.[6]陳學紅,運動目標高分辨率成象,博士學位第一年度報告,中國科學院電子學研究所,1987.[7]張直中,合成孔徑,逆合成孔徑和成象雷達,現(xiàn)代雷達編輯部(講座),1986.[8]M. J. Prickett.[J].C. C. Chen, Principles of inverse SAR imaging, Conf. Proc. of EASCON8.1980,:-[9]J. L. Walker, IEEE Trans. on AES, AES 16(1980)1, 23-52.[10]何國瑜等, BH2051型RCS測試系統(tǒng),北京航空學院研究生報告,1987. -
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