一种逆合成孔径雷达成像包络对齐的新方法

有关逆合成孔径雷达运动补偿中的包络对齐问题已有很多讨论，并在实际中得到成功的应用，但是，这些方法均基于运动目标为全刚体，当肯游动部件，且有一定的视入方向部件有很强的闪烁回波，这时会使原来的包络对齐方法失效。此外，现有的包络对齐方法运算量较大。据此，提出了基于范数１的包络对齐方法，实测数据表明新方法是有效的。

A new method for the range alignment in ISAR imaging

The problem of range alignment in ISAR imaging has been discussed by many researchers. And different kinds of methods, such as envelope correlation method and Minimum Entropy (ME) method, have been proposed. All these methods are successfully used in real data processing. But all these methods require that the target be a rigid one. When the target has moving parts which have a strong son echo, these methods do not work. Moreover, these methods are of computational complexity. In this paper, we propose a new method based on norm 1 to solve these two problems. The imaging results of real data verify the effectiveness of the method.