国防科技大学学报Issue(2)：18-23,6.DOI:10.11887/j.cn.201402004
基于U变换的空间站交会调相非线性协方差分析方法
A nonlinear covariance analysis method for space station rendezvous phasing based on unscented transformation
摘要
Abstract
As for the long-time error propagation problem of the space station rendezvous phasing,a nonlinear covariance analysis method based on the unscented transformation (UTCAM)is presented.The strategy of rendezvous phasing and the computation method of orbit maneuver parameters is proposed,then the principles and flow of UTCAMare introduced.The comparison between UTCAMand the two methods of STK and the Monte-Carlo shows that the relative error of covariance analysis between those methods is under 1 .2%,and the computation consumption time is only 1/460 that of Monte-Carlo,so it can accomplish the propagation of mean and covariance rapidly and exactly for nonlinear systems.Finally,the error propagation of a 20-day rendezvous phasing of space station is conducted by using UTCAM,and the results are validated by the Monte-Carlo simulation.关键词
U变换/偏差传播/轨道调相/协方差分析Key words
unscented transformation/error propagation/orbit phasing/covariance analysis分类
航空航天引用本文复制引用
黄海兵,张进..基于U变换的空间站交会调相非线性协方差分析方法[J].国防科技大学学报,2014,(2):18-23,6.基金项目
国家自然科学基金资助项目（11272346，11222215）；高等学校全国优秀博士学位论文作者专项资金项目 （）
