摘要
本文基于联合时间频率二维分布的研究方法,探讨了WVD(Wigner-Ville Distribution)变换用于合成孔径雷达运动目标检测和成象的可行性,给出了能得到运动目标精细成象的参数估计方法,并对多点目标和面目标情况下WVD存在的问题进行了研究。计算机模拟验证了算法的有效性。
Based on a joint time-frequency two dimensional processing, this paper proposes a method for the detection and imaging of moving targets with SAR by using Wigner-Ville Distribution (WVD). It is a parameter estimation method to generate a high resolution image. The problems of WVD in dealing with multipoint targets and extent targets are also discussed. The computer simulation results illustrate its availability.
基金
国家高技术计划863-308资助项目
关键词
合成孔径雷达
运动目标检测和成象
WVD变换
Synthetic aperture radars, Detection and imaging of moving targets, Wigner-Ville distribution transform
