新旧体制兼容的卫导信号捕获方法研究  

Research on Compatible Capture Method of Satellite Navigation Signal

作　　者：麻军伟[1] 王刚[1] 时永刚[2] MA Junwei;WANG Gang;SHI Yonggang

机构地区：[1]中国电子科技集团公司第二十研究所 [2]中国人民解放军91663部队

出　　处：《现代导航》2017年第3期182-187,共6页Modern Navigation

摘　　要：以BOC调制方式为基础的新体制信号在现代化全球卫星导航系统中已展开应用,相较传统BPSK调制,新体制信号在提高导航性能的同时也带来捕获模糊度。文中针对信号新旧信号的捕获问题,分析了BOC调制方式及其信号特性,介绍了一种兼容新旧体制信号的快速捕获方法。结果表明,该方法可有效解决捕获模糊度和兼容性问题。New satellite navigation signal based on BOC modulation is applied in modern GNSS.Compared with BPSK,thenew signal system also brings some capture fuzziness while improving performance.In order to solve these problems,the BOCmodulation and the signal characters are analyzed in this paper,and a compatible capture method is presented.As the result indicated,the method is effective on fuzziness and compatibility of signal capture.

关 键 词：卫星导航 BOC 调制 信号捕获 

分 类 号：TN967[电子电信—信号与信息处理]