论文部分内容阅读
本文针对机载合成孔径雷达 (SAR)运动目标回波信号的特点 ,提出了基于互Wigner Ville分布 (XWVD)的机载SAR运动目标检测方法 ,分析了它在单目标和多目标情况下的检测性能 .实验证明 ,该方法可以在较低的信噪比下实现目标的检测 ,其性能大大优于常用的Wigner Ville分布方法 .为了抑制多个目标之间交叉项的影响 ,本文还提出了一种基于逐次消去思想的互Wigner Ville分布检测方法 ,它可以解决强度相差较大的多目标检测问题 .仿真实验的结果证明了算法的有效性
Aiming at the characteristics of moving target echo signals of airborne Synthetic Aperture Radar (SAR), this paper proposes a moving target detection method based on mutual Wigner Ville distribution (XWVD) for airborne SAR, and analyzes its detection under single-target and multi-target conditions Performance.Experiments show that this method can achieve the target detection at a low signal-to-noise ratio and its performance is much better than the commonly used Wigner Ville distribution method.In order to restrain the influence of the cross term between multiple targets, A Wigner Ville distribution detection method based on the idea of successive elimination, which can solve the problem of multi-objective detection with large difference in intensity, the simulation results show the effectiveness of the algorithm