摘要
对钟差一次差分预报原理进行改进,分析常用的一次多项式模型、二次多项式模型和灰色模型在采用改进原理进行预报时的相关特性。结果表明,对钟差一次差分预报原理的改进是有效的,可以提高常用模型在钟差短期预报中的预报精度。
An improved strategy for the prediction principle based on single difference values of satellite clock bias（SCB）is proposed.This paper analyzes prediction characteristics of the frequently-used linear polynomial model,quadratic polynomial model and grey model when they use the proposed prediction principle.The simulation results show that the proposed improvement for the prediction principle is effective and the prediction precision of the frequently-used models can get better prediction results based on the proposed prediction principle in the short-term SCB prediction.
出处
《大地测量与地球动力学》
CSCD
北大核心
2016年第12期1073-1077,共5页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金(41674019)
国家重点研发计划(2016YFB0501701)
地理信息工程国家重点实验室开放基金(SKLGIE2015-M-1-6)~~
关键词
导航卫星
钟差预报
一次差分
数据建模
navigation satellite
clock bias prediction
single difference
data modeling
