双基地SAR的QBP成像算法
Yuhang Xuebao/Journal of Astronautics（2011）
Abstract
时域BP算法能够灵活处理双基地SAR信号,但是运算量很大.本文根据系统工作模型,推导出SAR信号聚束化后方位向带宽与成像区域的尺寸成正比,适合采用QBP算法进行成像;研究了聚束参考点的变化对信号带宽的影响.给出了双基地QBP算法的具体实现步骤,分析了QBP算法的运算复杂度.理论分析、仿真实验和实测数据结果验证了QBP算法的有效性.
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Key words
Bistatic,Iimaging algorithm,Quadtree,Synthetic aperture radar(SAR)
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