中国空间科学技术

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星载合成孔径雷达的一种新波形及其处理技术

张润宁,何宇   

  1. 北京空间飞行器总体设计部!北京100086,北京空间飞行器总体设计部!北京100086
  • 发布日期:2000-04-25

A New Kind of Spaceborne SAR Waveform and its Processing Technique

Zhang Running He Yu (Beijing Institute of Spacecraft System Engineering,Beijing 100086)   

  • Published:2000-04-25

摘要： 分析研究了步进频率脉冲串信号在星载合成孔径雷达 (SAR)中应用时的多普勒效应 ,并提出了一种纵向距离合成高分辨成像时多普勒二次相位的补偿方法 ,从而消除了纵向距离分辨率的恶化和信噪比损失 ,同时还可以消除纵向距离向与方位向之间的多普勒耦合

关键词: 合成孔径雷达, 多普勒效应, 雷达成像

Abstract: On the basis of quantitative analysis of Doppler effects of linearly stepped frequency pulse train waveform when it is used in spaceborne synthetic aperture radar (SAR),a new method is presented to compensate Doppler Quadric phase and to avoid slant range resolution deterioration,loss of SNR and Doppler phase coupling between slant range dimension and azimuth dimension.