摘要
为提高GPS的定位精度,对流层大气引起的延迟一般都需进行修正。对于GPS精密定位系统,不仅要考虑对流层大气在垂直方向上的延迟,也需要考虑其在水平方向上的延迟。通过GPS测量站一年测量数据的处理,给出了对流层水平方向上的延迟情况,证明了在GPS精密定位中,对流层水平方向上的延迟也是一种不可忽略的参量。
In order to improve the accuracy of GPS positioning, the time delay caused by the tropo- sphere atmosphere must be revised. For GPS precision positioning system, we not only need to consider the troposphere atmosphere delay in vertical direction, also need to consider it in the horizontal direc-tion. By processing the data of a GPS down-range station＇s one year survey, the paper presents the troposphere delay in horizontal direction, and proved that in the GPS precision positioning, the tropo-sphere delay in horizontal direction cannot be neglected.
出处
《全球定位系统》
2007年第3期9-10,51,共3页
Gnss World of China
