IGS快速精密星历与事后精密星历的定位精度分析  

Positioning Accuracy Analysis Between IGS Rapid Precise Ephemeris and Final Precise Ephemeris

作　　者：汪平[1] 许家琨[1] 沈国康 孙雪洁[1] 

机构地区：[1]92899部队

出　　处：《海洋测绘》2015年第5期32-34,共3页Hydrographic Surveying and Charting

摘　　要：针对是否能用IGS快速精密星历代替最终精密星历进行定位的问题,论文通过静态、动态两类实验,从内符合、外符合精度两个方面详细比较了两种星历产品的定位效果。实验结果表明:IGS快速精密星历的定位精度与事后精密星历的定位精度都非常高,且两种产品对应定位结果差异为毫米级,因此可采用快速精密星历代替事后精密星历进行定位解算,而不必担心精度损失。The accuracy of IGS rapid precise ephemeris was equal to that of the IGS final precise ephemeris, but the latency of the rapid was shorter than that of the final. In order to improve the work efficiency, the rapid precise ephemeris was considered. But the positioning accuracy difference between the rapid and the final required careful comparison by experiment, the results of the experiment computations indicated that positioning accuracy of the rapid IGS precise ephemeris product was equivalent to that of the final product, so users could choose IGS rapid precise ephemeris instead of the final one, not worrying about loss of precision.

关 键 词：IGS IGS快速精密星历 IGS事后精密星历 内符合精度 外符合精度 

分 类 号：P228[天文地球—大地测量学与测量工程]