摘要
北斗卫星导航系统是中国独立研发并自主运行的卫星定位导航系统。在分析扩频通信系统原理的基础上,设计出了一种基于数字Costas环的载波跟踪方法。通过算法的分析比较,经过MATLAB仿真,验证了Costas环设计的正确性与可行性。
Beidou satellite navigation system is independently developed and autonomously operated by China. Based on analyzing the working principles of spreading-spectrum communication system, this paper designs a carrier tracking method based on digital Costas loop, and through the analytic comparison of algorithms and MATLAB simulation, verifies the correctness and feasibility of the design of Costas loop.
出处
《山西科技》
2015年第5期51-53,共3页
Shanxi Science and Technology
关键词
卫星导航系统
无源定位
载波跟踪方法
satellite navigation system
passive location
carrier tracking method
