| 摘要: |
| 针对COMPASS系统的PNT(Position, Navigation, and Timing)性
能在全球不均匀的现状，提出采用48星极轨或玫瑰星座的LEO(Low Earth Orbit)通信卫星对
COMPASS系统进行性能增强的方案，并对其覆盖性能及各纬度带的平均覆盖仰角进行分析。
在此基础上，研究并探讨了LEO星座通信卫星增强的导航系统组成和原理，并以位置精度因
子和可见卫星数为指标，对比分析两类LEO星座增强下的导航系统性能。 |
| 关键词: COMPASS 低轨星座卫星通信系统 增强 位置精度因子 可见
卫星数 |
| DOI： |
|
| 基金项目: |
|
| Design and performance analysis of LEO satellites enhanced COMPASS system |
| ZHAO Jin-feng,YU Xiao,FENG Shao-dong,DENG Lin |
| () |
| Abstract: |
| According to the status that COMPASS system′s PNT(Position,Navigation,and Timin
g) is asymmetry in the worldwide, the polar constellation and rose constellation
are proposed to enhance the COMPASS, and then their coverage performances are s
imulated and analysed. Furthermore, the structure and principle of enhanced COMP
ASS system are discussed. By using the index of position dilution of precision a
nd the number of visible satellites, the performance of enhanced system is compa
ratively analysed. |
| Key words: COMPASS LEO constellation satellite communication sys
tem augmentation PDOP number of visual satellites |
《电讯技术》编辑部 