基于Wigner-Hough的合成孔径雷达信号处理  

SAR signal processing based on Wigner-Hough transform

作　　者：张小莉[1] 樊延虎[1] 

机构地区：[1]延安大学物理与电子工程学院,陕西延安716000

出　　处：《现代电子技术》2014年第15期5-8,共4页Modern Electronics Technique

摘　　要：交叉项问题是合成孔径雷达信号处理的主要难题,为了解决常规的合成孔径雷达信号处理中的交叉项问题,从Wigner-Ville引出Wigner-Hough变换的原理,及Wigner-Hough变换处理这一问题的方法。通过Matlab软件仿真实验,比较常规方法与Wigner-Hough变换处理后的合成孔径回波信号效果,经过Wigner-Hough变换处理后的回波信号解决了交叉项问题,凸显Wigner-Hough变换在处理合成孔径信号中的优势。Cross-term is the critical problem of SAR signal processing. To solve it in the signal processing,the transform principles of Wigner-Hough were drawn forth from the Wigner-Ville,and then the method to deal with the problem in the Wigner-Hough transform was determined. The effects of the SAR echo signal of common methods and the Wigner-Hough transform method were compared by Matlab simulation experiment. The superiority of Wigner-Hough transform is obvious for processing the syn-thetic aperture echo signals.

关 键 词：Wigner-Ville Wigner—Hough变换 交叉项 Matlab 

分 类 号：TN957.51[电子电信—信号与信息处理]