指出卫星导航系统的发展规划应与国防战略和装备能力相适应，一个包括我国周边及西太平洋的区域系统可以满足近期的军用、民用需求。分析了我国建设卫星导航系统的不利条件，并设计了规避不利条件的卫星星座。介绍了我国发展全球系统所必需的卫星对卫星观测和数据传输的技术支撑。分析了区域增强的全球系统的竞争优势。

This paper indicates that the development of satellite navigation system should correspond to defense strategy and equipment capacity, and a regional navigation system covering neighboring countries and the western Pacific is able to meet the recent military and civilian demands. The adverse conditions of constructing satellite navigation system in our country are analyzed and satellite constellation of avoiding adverse conditions is designed.