基于修正钟差一次差分数据的卫星钟差预报

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。

Satellite Clock Bias Prediction Based on Modified Single Difference Data of Clock Bias

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.