合成孔径雷达动目标成像的一种新方法

A New Method of Imaging of Moving Target with SAR

本文在分析动目标ＳＡＲ回波频谱特性的基础上，提出了一种新的动目标成像方法，该方法基于时间－频率联合分析法，利用其对参数的精确估计和动目标检测区的高信噪比，得到运动目标的精细成像，实现ＳＡＲ动目标成像模式对常规模式的兼容。计算机模拟对比了几种方法的处理性能，验证了新方法的有效性。

This paper mainly deals with a new mode of SAR imaging, which is the imaging of moving objects in SAR. Based on the analyses of echo spectrum and joint time-frequence processing method,a new approach is presented to get the exact parameter estimation of slowly moving targets.It provides an efficient way for SAR imaging with combined AMTI. The computer simulation verifies its avaliability.