分析了合成孔径雷达实时成像的系统设计瓶颈,研究了距离子带划分与方位预滤波的处理方法,并提出了一种高性能的机载实时成像系统设计。该系统不仅能够有效满足雷达成像大幅宽、高分辨的实时处理需求,而且还具有优良的拓展能力,兼容性好。实际处理结果验证了该设计方法的有效性。

The difficulty of real-time synthetic aperture radar ( SAR) processing is analyzed. The method of azimuth pre-filtering and range dividing is studied. A system structure is presented for high quality real-time SAR processing, which is not only suitable for high resolution and wide width, but also can be extended easily and has good compatibility. All concepts are verified by practical processing results.