摘要
基线在星载干涉SAR的系统设计和数据处理中起着非常重要的作用,对于微小卫星编队系统来说稳定性问题是干涉SAR空间基线的一个重要问题。首先建立了空间基线的几何模型,定义了垂直基线、有效基线和水平基线。根据微小卫星编队飞行的特点,建立了空间基线的动态模型。基于这个模型,提出了一种空间基线稳定度的计算方法。最后,比较了不同编队构形和不同卫星数目两种憎爱分明形下空间基线稳定度。仿真结果表明空间基线稳定度的计算方法是有效的。
Baseline is very important to spaceborne interferometric SAR system design and data processing. For a micro-satellite cluster system, stability is an important problem for spatial baseline of INSAR. Firstly a geometrical model of spatial baseline is constructed, and the definitions of vertical baseline, effective baseline and along-track baseline are presented. According to the characteristics of the micro-satellite cluster the dynamic model of spatial baseline is built and a method which can quantitate stability of spatial baseline is presented. Finally, on condition of different formation shapes and different numbers of satellites, stability of spatial baseh'nes is compared. The results of simulation indicate that this method is effective and feasible.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2005年第2期218-220,共3页
Systems Engineering and Electronics
