大地测量与地球动力学2017，Vol.37Issue(3)：292-296,5.DOI:10.14075/j.jgg.2017.03.015
BDS星载原子钟周期项特性及预报研究
Research on Prediction and Characterization of Periodic Variations in BDS Satellite Clocks
马卓希 1杨力 2贾小林3
作者信息
- 1. 61363部队,西安市,710054
- 2. 信息工程大学导航与空天目标工程学院,郑州市科学大道62号,450001
- 3. 北斗导航应用技术河南省协同创新中心,郑州市科学大道62号,450001
- 折叠
摘要
Abstract
The periodicity of BDS satellite clocks is analysed using the Fourier transformation method,and then we build the forcast model considering periodic term.On this basis,we analyze the shortterm forecast effect and forecast precision of different types of satellites.Experimental results show that different types of satellites show more significant half-day and one-day period terms,and the corresponding energy amplitudes are different.Compared with the traditional quadratic polynomial forecast model,the proposed model can significantly improve prediction accuracy.The overall accuracy of 6 h prediction can be better than 2 ns and 24 h prediction accuracy better than 10 ns.关键词
BDS/星载原子钟/频谱分析/周期项/钟差预报Key words
BDS/satellite atomic clock/spectrum analysis/periodic term/clock offset prediction分类
天文与地球科学引用本文复制引用
马卓希,杨力,贾小林..BDS星载原子钟周期项特性及预报研究[J].大地测量与地球动力学,2017,37(3):292-296,5.
