测轨时序差分观测权阵的解析表达式  

Formula of Weighting Matrix for Time-differencial Measurements

作　　者：杜兰[1] 张传定[1] 郑勇[1] 李杰[1] 

机构地区：[1]解放军信息工程大学测绘学院,河南郑州450052

出　　处：《飞行器测控学报》2006年第3期68-71,共4页Journal of Spacecraft TT&C Technology

摘　　要：基于相关权逆阵和二次差分矩阵的对应关系,利用Delta函数的性质,推导了时序差分组合的相关权矩阵公式，并利用Matlab对解析表达式进行了数值验算。该公式可以直观地反映出差分组合观测量的统计相关信息。An analytical expression is presented for the weighting matrix of a set of time-differeneial measurements based on the close relationship between eovarianee matrix and seeond-differeneial matrix as well as the special property of Delta functions. Simulation by using Matlab verified the formula, which has the merits of directly reflecting the stochastic information of time-differeneial measurements.

关 键 词：相关权逆阵 二次差分 相关权矩阵 Delta函数 

分 类 号：V557[航空宇航科学与技术—人机与环境工程]