雷达科学与技术2017，Vol.15Issue(6)：571-579,592,10.DOI:10.3969/j.issn.1672-2337.2017.06.001
幅相误差对多发多收模式SAR成像影响分析
Theoretical Analysis on Effects of Amplitude-Phase Error and Antenna Position Error on Multiple Transmit-Receive SAR Imaging
摘要
Abstract
Incorporated with digital beam-forming (DBF)techniques,the multi-channel spaceborne SAR system are able to overcome the contradiction between high resolution and wide swath and yield high resolution and wide swath(HRWS)images.The multiple transmit-receive mode is promising.In this paper, we build the echo model in which two kinds of channel errors,channel gain-phase error and antenna position error,are incorporated.By calculating the result of compression on the mismatched multi-channel azimuth signals,we get the analytical formulas of peek-to-ghost-ratio (PGR)under multiple transmit-receive mode. Then we can analyze the effects of these errors on imaging.Simulation validates the correctness of the for-mulas and also gives the curves which describe the relation of the imaging performance and these errors.关键词
多发多收/合成孔径雷达/方位多通道/相位中心误差Key words
multiple transmit-receive/synthetic aperture radar/multi-channel/antenna position error分类
信息技术与安全科学引用本文复制引用
李舆坤,洪峻,明峰..幅相误差对多发多收模式SAR成像影响分析[J].雷达科学与技术,2017,15(6):571-579,592,10.基金项目
国家高分对地观测重大专项(No.GFZX0403220401) （No.GFZX0403220401）
