一种基于SCFT算法的距离向多孔径SAR成像算法
A Range Multi-aperture SAR Imaging Method Based on SCFT
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摘要: 距离向多孔径SAR模式是一种高分辨率的宽测绘带成像模式。反解运算和成像处理是距离向多孔径成像算法的两个部分，两者合理配合使用是实现多孔径模式高精度成像的关键。该文给出了一种采用变尺度傅里叶变换( SCaled FT, SCFT,)算法来实现成像处理并与反解运算结合的多孔径成像算法。与已有的处理算法比较，该算法在不显著增加计算复杂度的条件下可获得较高的成像质量。文中最后给出了仿真结果。Abstract: The SAR working mode of range multi-aperture is a high resolution imaging mode for wide swath. Resolving and imaging are the two parts of range multi-aperture imaging algorithm. How to match the two parts together is the key problem for the algorithm. This paper presents a new method based on SCFT (SCaled FT) to solve the problem. Simulation and comparison between different methods is also given to prove the feasibility of range multi-aperture SAR imaging method based on SCFT.
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