双通道终端进行卫星双向法时间比对的归算方法

用双通道终端进行卫星双向法时间比对,可同时实现多台站时间同步。但是,目前双通道终端卫星双向法时间比对仍采用经典二台站归算方法,同时性的优点并没有得到充分的利用,其结果不闭合,比对得到的结果不统一。为了避免了上述问题,给出了新的归算方法,在同一系统下给出时间比对结果。新的归算方法不但提高了时间比对精度,同时还给出卫星到地面站之间的精确伪距,籍此精确地测定卫星的实时位置。

A Method for Processing Multi-Station Data on Two-Way Satellite Time Transfer with Two-Channel Modems

The time transfer among multi-station at the same time can be reached if the two-channel modems are employed. But the classical algorithm is still used for processing the multi-station data from the two-channel modems, so that the advantage of simultaneity is not used. Furthermore, the result from measurements is not a closed set and the system is not uniform. In order to improve it,an algorithm has been developed. The result from the new algorithm is more precise and accurate. And the precise pseudoranges between satellite and stations are determined.