差分GPS定位系统的卫星位置算法研究

Research on Satellite Positioning System of Differential GPS

文中介绍了定位系统卫星位置的计算方法,采用导航电文,建立了卫星位置计算的数学模型,讨论了卫星在轨道平面上的位置,观测时刻的升交点经度,卫星坐标处理,给出了卫星在地心坐标系中的位置和卫星在站心坐标系中的位置及观测卫星的瞬时位置,证实了GPS定位系统的位置计算方法的有效性。

This paper mainly introduces the detailed method of calculation in the satellite positioning system of differential GPS. We establish a mathematic model by use of navigation message format. We discuss the location of satellite on orbit plane, longitude of the arising position at watching time and the treatment of the coordinate for satellite. The paper also describes the location of satellite in earth heart and space point coordinate system, the azimuth angle and the height angle while observing. Computer simulation shows that the approach is efficient and practical.