摘要
在GPS精密单点定位计算中,需要高精度卫星轨道位置及高采样率的钟差产品。采用滑动式拉格朗日内插方法,利用Matlab编程,对国际地球动力学服务机构(IGS)提供的精密星历和钟差进行加密计算,通过改变插值阶次和采用不同的采样率钟差产品进行插值计算,得出一些有益的结论。
In the calculation of satellite positioning and GPS precise point positioning,high precision satellite orbit position and high sampling rate clock offset are needed. Encrypt precise ephemeris and clock offset provided by the International GNSS Service( IGS) using the sliding Lagrange interpolation method in Matlab programming. Obtained Some useful conclusions by changing the interpolation order and using different sampling rates of clock offset product.
出处
《水利科技与经济》
2016年第9期50-53,共4页
Water Conservancy Science and Technology and Economy
关键词
精密星历
卫星钟差
滑动式拉格朗日
内插加密
precise ephemeris
satellite clock offset
sleek Lagrange
interpolation and encryption
