有源轉(zhuǎn)發(fā)器延時(shí)對(duì)SAR定標(biāo)測(cè)量的影響
Effect on SAR Calibration from Transponder Time-Delay
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摘要: 該文研究了有源轉(zhuǎn)發(fā)器延時(shí)對(duì)距離向壓縮信號(hào)、方位向壓縮信號(hào)幅度和相位的影響；通過(guò)數(shù)據(jù)仿真，分析和討論了不同分辨率、不同時(shí)延長(zhǎng)度的情況下，有源轉(zhuǎn)發(fā)器延時(shí)對(duì)點(diǎn)目標(biāo)成像位置、主瓣及旁瓣的影響，并給出有源轉(zhuǎn)發(fā)器時(shí)延設(shè)置時(shí)需要考慮的因素。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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