摘要
全球导航卫星系统间的频率兼容性研究已经成为一个热点问题。首先介绍了国际电联建议的卫星导航系统间干扰分析方法;然后根据该方法对Compass系统和GPS系统在L1频段的信号进行了干扰仿真分析,并比较了系统间互干扰和系统自干扰的影响。仿真计算结果表明,除了互用信号L1C和B1C外,其余信号间的自干扰在总干扰中占主导,互干扰的影响相对较小。
Compatibility among Global Navigation Satellite Systems is a hot topic. The interference analysis methodology between Global Navigation Satellite Systems recommended by International Telecommunication Union was firstly introduced. Based on this methodology, the interference between Compass and GPS was simulated and analyzed in the L1 band. The simulation results showed that the Intrasystem Interference was preponderant over the intersystem Interference expect BIC and L1C signals with interoperation for Compass and GPS.
出处
《测绘科学技术学报》
北大核心
2009年第3期216-219,共4页
Journal of Geomatics Science and Technology
