群聚卫星系统参数对INSAR测高测速精度的影响  

Influence of the distributed satellite system parameter to INSAR precision

作　　者：曾斌[1] 张晓玲[1] 黄顺吉[1] 

机构地区：[1]电子科技大学电子工程学院,四川成都610054

出　　处：《系统工程与电子技术》2004年第8期1007-1010,共4页Systems Engineering and Electronics

基　　金：国防预研基金资助课题

摘　　要：群聚卫星SAR(syntheticapertureradar)系统是一种新的功能强大的SAR系统。切航迹干涉SAR(CT INSAR)及沿航迹干涉SAR(AT INSAR)是该系统的两种主要工作模式。主要研究该系统中各种参数测量的误差对切航迹干涉SAR成像高度精度的影响,分析并给出了在测绘带内对各种数据测量精度的要求。还分析了沿航迹干涉SAR中测速精度对基线测量精度的要求。仿真结果表明,CT INSAR系统对基线精度的要求比AT INSAR系统要高得多。The cluster-micro-satellite synthetic aperture radar is an innovative SAR system brought out recently. The across-track INSAR imaging and along-track INSAR imaging are the principal working modes of the system. The influence of all sorts of parameters measure-error on the CT-INSAR imaging precision is emphatically analyzed, and the precision requirements for any datum in the survey band are given. In addition, the requirements of velocity precision for the baseline precision in the AT-INSAR mode are analyzed too. The simulating result shows that the baseline precision in the CT-INSAR mode is much higher than in the AT-INSAR mode.

关 键 词：合成孔径雷达 高度精度 测速精度 误差分析 群聚卫星系统 干涉SAR 

分 类 号：TN957[电子电信—信号与信息处理]