弹载SAR实时信号处理研究  

Research on Real-Time Signal Processing of the Missile-Borne SAR

作　　者：贺知明[1] 朱江[1] 周波[1] 

机构地区：[1]电子科技大学电子工程学院,成都610054

出　　处：《电子与信息学报》2008年第4期1011-1013,共3页Journal of Electronics & Information Technology

摘　　要：该文针对SAR成像方法进行了理论分析,研究了用于弹载SAR的时域子孔径算法实现,给出了算法的流程,最后根据实际系统需要,设计了采用高性能的DSP芯片TS203的信号处理系统并用于实际的数字信号处理并给出了该系统的成像处理结果。结果表明采用时域子孔径算法和该文所设计的硬件平台,能够正确对弹载SAR回波进行实时成像计算。In this paper, the theoretical analyses and simulations of the SAR imaging processing are firstly made, the time-domain sub-aperture algorithm which is used to implement missile-borne SAR, are researched and the whole flow of the algorithm are given. Finally, thinking over the need of the practice system, a hardware system using the high performance DSP chip named TS203 to process digital signal practically are designed and the result of imaging are given. The result validates the efficiency of the time-domain sub-aperture algorithm and hardware platform.

关 键 词：SAR 时域子孔径 DSP 

分 类 号：TN958[电子电信—信号与信息处理]