【摘要】 首先简要介绍了欧洲、日本发展卫星定位导航系统的情况。阐述了我国第二代区域卫星导航系统的必要性。指出了采用园轨道同步卫星和静止星的星座方案的优缺点。用计算机仿真详细研究了倾斜椭圆轨道同步卫星的轨道参数与定位性能关系。设计了一个静止卫星和椭圆同步卫星组成的 7星星座 ,并且评估了该星座在我国及周边地区的性能。仿真计算表明 ,这种星座能够满足现阶段我国区域导航系统需要更多还原

【Abstract】 The developing trends of the satellite positioning and navigation systems in Europe and Japan are simply introduced at first. The necessity of the second generation of Chinese satellite navigation is described. The advantages and defeat using circle orbit synchronous satellite in China area are pointed out. The relation between orbit parameters of inclined elliptical satellite and positioning performance is investigated in detail. Then a constellation including three geostationary and four inclined elliptical orbit synchronous satellites is designed, and its performance covering China and its surrounding area is evaluated. Simulation shows the regional navigation system using the constellation can meet the design requirements at present.更多还原