超快速星历在高等级控制网中的应用

摘要

As we all know, the IGS precise ephemeris can't meet the need of emergency security. We used the IGS precise ephemeris, IGR fast ephemeris and IGU faster ephemeris to make data processing, and compared their adjustment and accuracy with them. According to the test, we can see that the IGU faster ephemeris can be used properly in control network data processing, and it is better at meeting the need of emergency security.%高等级大地控制网数据处理一般使用IGS精密星历,但IGS精密星历不能实时获得,满足不了应急保障的需要.采用IGS最终星历、IGR快速星历、IGU超快速星历分别对高等级控制网点进行数据处理,对平差结果及精度进行比较分析.实验证明,IGU超快速星历可应用于高等级控制网数据处理.