双站合成孔径雷达R/D成像算法研究

Research on R/D imaging algorithm for bistatic synthetic aperture radar

随着分布式SAR的兴起,双站SAR的成像算法开始成为新的研究热点。研究了双站回波的信号特性,将双站的相对运动分解为方位向和距离向,通过分解补偿的方法将经典的距离多普勒(R-D)算法移植到双站模型上,实现了双站SAR的成像。并在星载参数下进行了点阵目标的仿真,仿真证明移植后的算法可以获得良好的成像效果。

With the development of constellation, imaging algorithm for bistatic radar is becoming a new research focus. This paper analyzes characteristics of echo of bistatic SAR, divides relative movement into azimuth and range direction, thus adopts classic R/D algorithm in bistatic situation. The simulation results demonstrate that it has a good performance in satellite situation.