基于Matlab/Simulink的GPS中频信号仿真  

Design of GPS IF Signals Emulator Based on Matlab/Simulink

作　　者：李爱勤[1] 李爱平[2] 宋燕燕[1] 

机构地区：[1]解放军信息工程大学理学院,河南郑州450001 [2]西藏民族学院,陕西咸阳712082

出　　处：《中国科技信息》2011年第9期115-116,共2页China Science and Technology Information

摘　　要：随着GPS应用领域的日益广泛,用户对GPS接收机的性能提出了更高的要求,研制出各种高性能的GPS接收机势在必行。而对GPS接收机的所有研究都是基于GPS中频信号的。在此背景下,本文在分析GPS中频信号生成原理的基础上,利用MATLAB/simulink搭建了GPS中频信号仿真平台;特别对C/A码的生成过程和C/A码的性能进行了详细研究;最后利用直接序列扩频生成了GPS L1 C/A信号。With the intensively study of GPS applications,users have a higher performance requirements of GPS receiver which make a variety of high-performance GPS receiver to be urgent.The GPS receiver of previous studies is based on the GPS IF signal.In this background,this paper build a GPS IF signal simulation platform using the MATLAB / simulink based on the analysis of GPS IF signal generation;is especially for C / A code generation process and the C / A codes in the performance of a detailed study;finally,generated GPS L1 C / A signal utilizing direct sequence spread spectrum.

关 键 词：GPS MATLAB/SIMULINK 中频信号 C/A码 

分 类 号：P228.4[天文地球—大地测量学与测量工程]