有源转发器延时对SAR定标测量的影响
Effect on SAR Calibration from Transponder Time-Delay
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摘要: 该文研究了有源转发器延时对距离向压缩信号、方位向压缩信号幅度和相位的影响；通过数据仿真，分析和讨论了不同分辨率、不同时延长度的情况下，有源转发器延时对点目标成像位置、主瓣及旁瓣的影响，并给出有源转发器时延设置时需要考虑的因素。Abstract: The effect of transponder time-delay on amplitude and phase of both range-compressed and azimuth-compressed signal are researched. Through simulation, the impact of transponder time-delay on imaging location, main-lobe, side-lobe of point target pulse response are analyzed and discussed under different resolution, different length of time-delay. Besides, the factors which need to be taken into consideration during time-delay setting are presented.
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Freeman A. SAR calibration: An overview. IEEE Trans. on Geosci Remote Sensing [J], 1992, 30(6): 1107-1121.[2]Masanobu Shimada, Hiromi Oaku, Masao Nakai. SARcalibration using frequency tunable active radar calibrators [J].IEEE Trans. on Geosci Remote Sensing.1999, 37(1):564-573[3]Curlander J C, McDonough R N. Synthetic Aperture RADAR: System and Signal Processing[M]. New York: wiley-interscience publication, 1991: 322-327.[4]刘永坦.雷达成像技术[M].哈尔滨：哈尔滨工业大学出版社, 2001: 40-46.[5]张澄波. 综合孔径雷达:原理、系统分析与应用[M]. 北京: 科学出版社, 1989, 第4章. -
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