摘要
GPS测量中经常出现开机后卫星数不够或PDOP几何精度因子超限等问题,接收GPS导航电文中星历预报文件,提前预测测区卫星分布情况卫星出入地平时刻、卫星进退观测允许高度角时刻及可见卫星的高度角辅方位角等,对于合理选择观测时间,提高作业效率具有很重要的作用。本文介绍了如何应用StarReport星历预报软件获取和解算GPS星历文件的方法。
GPS measurements are often turned on a few satellites or PDOP GDOP not overrun problems,the receiver in the GPS navigation message ephemeris prediction file,ahead of forecasts surveyed area,the distribution of satellite access horizon satellite time,satellite observations allow a high degree of angular advance and retreat time and shows a high degree of satellite auxiliary azimuth angle,a reasonable choice for the observation time and improve operational efficiency have a very important role.This article describes how to use StarReport ephemeris prediction software for reconciliation to calculate GPS ephemeris documents.
出处
《北京测绘》
2010年第4期59-61,共3页
Beijing Surveying and Mapping
