斜视SAR带状成像算法的比较

对可用于斜视ＳＡＲ成像处理的算法，从它们的聚焦能力，处理大距离弯曲能力以及处理相关核空变特征的能力上，进行了研究，认为二维处理算法具有最全面的处理能力，但其成像的实时性最差；二维快速多项式变换处理算法（ＦＰＴ）同样具有全面的处理能力，但其成像的实时性较好；一维校正处理算法，具有较好的处理能力，其成像的实时性最好，而且能与正侧视成像算法相容合，有利于多模式ＳＡＲ成像。

A Researching Comparison of Algorithms of Squint Side-looking Strip Imaging Mode SAR

In this paper,some different algorithms,which can be used for the imaging processing of squint mode SAR,are compared with each other in terms of their focusing qualities and their abilities to handle the large range migration and curve and the space-variance of the correlation kernel of the squint side-looking strip imaging mode SAR.Their real-time imaging abilities are also discussed.The results show that 2-D processing algorithms have full capability of imaging,but the real-time imaging is the most difficult.The fast polynomial transform(FPT) method also has the full capability,but the real-time maging is more easy.The 1-D direct correcting method has better capability of imaging,and the real-time imaging is the easiest,and it is more suitable to the multimode imaging SAR.