预报卫星信号传播时延的统计方法

A Statistics Method for Signals Propagation Delay Prediction

利用我国定位于87.5°E的实用通信卫星,研究包括建立对静止卫星进行统计定轨定位的方法,找出观测区间与预报区间相应参数的定量关系。在该卫星授时系统中,时刻比对格式如图所示。

A mathematical statistics method on the orbit parameters prediction is presented in this paper. The target function is the propagation delay function which depends on orbit parameters function. The analyses include: 1. analyzing the variance of main parameters of propagation delay curve. 2. establishing the plane regression equation. 3. finding out a kind of linear approximation algorithm for orbit parameters. The precision of time determination using this method is 5μs.