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高分辨斜视SAR成像处理要求补偿与距离相关的距离徙动和二次距离压缩项。ChirpZ变换能够有效地校正距离徙动。本文在基于Chirp Z变换SAR成像算法的基础上,提出了一种对距离维进行分块处理解决二次距离压缩的方法。计算机仿真表明了该方法的可行性。
High-resolution strabismic SAR imaging requires compensation of distance-dependent distance and quadratic distance compression items. ChirpZ transform can effectively correct the distance migration. Based on the Chirp Z transform SAR imaging algorithm, this paper presents a method to solve the quadratic distance compression by segmenting the distance dimension. Computer simulation shows the feasibility of this method.