摘要
BOC调制技术是一种广泛应用于GPS的现代化以及伽利略系统中新型信号调制技术。为研究其频谱特性,分析了BOC调制技术的基本原理及信号的产生过程,应用Matlab软件对其频谱特性进行了仿真,阐述了这种信号调制方式的优点;此外对其扩展技术MBOC,CBOC,TMBOC以及AltBOC做了简要介绍,对进一步研究导航信号现代化具有一定意义。
Binary offset carrier (BOC) modulation is a new type of modulation designed for the next GNSS system, which is widely applied in the modernization of GPS and the Galileo system. Its principle and performance were analyzed in this paper, with a thorough simulation of its spectral characteristics using the Matlah. The MBOC, CBOC, TMBOC and AltBOC modulation were also introduced briefly, which had a great significance for further research on the modernization of navigation signals.
出处
《现代电子技术》
2012年第19期161-164,共4页
Modern Electronics Technique
关键词
卫星导航系统
二进制偏移载波
调制
频谱特性
导航信号
satellite navigation system binary offset carrier l modulation spectral characteristic navigation signal