海洋测绘2013，Vol.33Issue(4)：58-61,4.DOI:10.3969/j.issn.1671-3044.2013.04.016
HY-2卫星精密轨道拟合与外推的两种方法比较
Comparison of Two Methods of HY-2 Satellite Precision Orbit Fitting and Extrapolation
高鹏 1乔学军 2范城城1
作者信息
- 1. 中国地震局地震研究所,湖北武汉430071
- 2. 中国地震局地震大地测量重点实验室,湖北武汉430071
- 折叠
摘要
Abstract
This paper mainly studies the use of Chebyshev curve and least squares curve to fit the HY-2 satellite precise orbit,as well as the further velocity field solving and the track forecasting.The results show that the least squares curve fitting results are significantly better than the Chebyshev curve fitting results,and the fitting orbit accuracy can reach 1 to 2cm,the fitting speed accuracy can reach 1 to 2cm/sec,and it can also make short-term forecast,the forecast track accuracy is the same with fitting orbital accuracy.关键词
全球导航卫星系统/HY-2/拟合轨道/切比雪夫曲线/最小二乘曲线Key words
GNSS / HY-2 / fitting track/ Chebyshev polynomial/ least squares polynomial分类
天文与地球科学引用本文复制引用
高鹏,乔学军,范城城..HY-2卫星精密轨道拟合与外推的两种方法比较[J].海洋测绘,2013,33(4):58-61,4.
