GLONASS卫星信号的捕获及其仿真  

Acquisition method and simulation for GLONASS satellite signal

作　　者：朱剑飞[1] 耿建平[1] 

机构地区：[1]桂林电子科技大学电子工程与自动化学院,桂林541004

出　　处：《国外电子测量技术》2011年第4期9-12,16,共5页Foreign Electronic Measurement Technology

基　　金：国家重点基础研究发展技术计划(2007CB815500);国家自然科学基金(60802018;61062003);广西高校优秀人才;桂林电子科技大学人才专项基金资助项目

摘　　要：本文通过介绍GLONASS卫星信号的组成和特性,分析了广泛用于卫星信号捕获的串行二维搜索捕获算法的算法原理;在考虑算法实现所需要的时间和涉及的计算量的前提下,分析了计算量较少,捕获时间较短的并行码相位搜索和部分匹配滤波两种捕获算法,对两种算法的算法流程进行了详细的分析,并利用matlab对算法进行仿真实现,成功解算出GLO-NASS信号的码相位偏移和载波多普勒偏移,验证了两种算法在GLONASS信号捕获中的可行性。The characteristics and the composition of GLONASS satellite signal are introduced,and the serial search ac- quisition algorithm which is widely used for satellite signal acquisition is given. Based on the requirements of short time required and little computation of implementation about algorithm, the algorithm of parallel code phase search acquisition and partial matched filter acquisition are proposed here. The algorithm flow is shown,and code phase offset and carrier doppler are successfully calculated based on the Matlab,which proves that this two algorithm are available in GLONASS signal acquisition.

关 键 词：GLONASS 伪码捕获 并行码相位搜索 部分匹配滤波 

分 类 号：P228.1[天文地球—大地测量学与测量工程]