摘要
在对锁相环基本原理分析的基础上,对GPS卫星信号的伪码跟踪方法进行了深入研究.针对DLL跟踪BOC调制信号时的不足之处,对一种新的伪码跟踪环路--NELP,进行了分析,并在Matlab环境下对两种跟踪方法进行了仿真.仿真结果表明,在对BOC调制信号进行跟踪时,NELP跟踪环比DLL跟踪环具有更精确的跟踪效果.
On the analysis of basic principle of DLL, the pseudo-code-track method of the GPS satellite signals is studied thoroughly. For the deficiencies of DLL＇s tracking the BOC modulation signals, a new pseudo-code-track loop, NELP is analysed and two methods of tracking are simulated in the Matlah environment. The simulation results show that in the BOC modulation signals at the track, NELP tracking loop has a more accurate tracking results than that of the DLL tracking loop.
出处
《沈阳理工大学学报》
CAS
2008年第6期44-47,63,共5页
Journal of Shenyang Ligong University
基金
辽宁省创新团队计划支持
