中国科学院研究生院学报2012，Vol.29Issue(2)：227-233,7.
机载单天线SAR动目标检测与参数估计
Moving target indication and parameter estimation based on single-channel aeroborne SAR
摘要
Abstract
We have studied the low precision of parameter estimation for the moving target in airborne single antenna SAR/GMTI mode. Firstly, the Doppler shift parameter and range walk parameter are used to estimate the radical velocity of the moving target, and the range walk parameter is corrected with the estimation results. Secondly, the improved reflectivity displacement method algorithm is used to estimate the Doppler frequency rate, and the azimuth velocity can be calculated when there is no acceleration. Thus, parameter estimation and focusing imaging can be completed at the same time. Simulation results show the effectiveness of the proposed method.关键词
单天线SAR/动目标检测/MTI滤波器/距离走动/反射特性位移Key words
single-channel SAR/ moving targets detection/ MTI filter/ range migration/ RDM分类
信息技术与安全科学引用本文复制引用
王艳霞,张毅..机载单天线SAR动目标检测与参数估计[J].中国科学院研究生院学报,2012,29(2):227-233,7.基金项目
国家863计划项目(2009AA7050613)资助 （2009AA7050613）
