GPS信号结构及其测距码研究  

The structure of the GPS signal and the simulation research on ranging code

作　　者：苗正戈[1] 鹿珂珂[2] 刘陵顺[2] 张海洋[1] 

机构地区：[1]海军航空工程学院研究生大队,山东烟台264001 [2]海军航空工程学院控制工程系,山东烟台264001

出　　处：《电子设计工程》2011年第16期112-115,共4页Electronic Design Engineering

摘　　要：简述了GPS概念、伪随机序列概念以及GPS卫星通信系统信号结构组成;在GPS信号测距码内容里,阐述了C/A码,P码和L2C码的特点和产生方法,以MATLAB作为工具,对GPS的卫星几种常见的测距码序列的产生进行仿真,经分析比对,产生序列准确无误。为进一步研究GPS卫星信号的接收和破译提供了依据。This paper explains the the concept of GPS,Pseudo Random Noise Code and structure of the GPS Signal,and describes the C/A code,P code and L2C code characteristics and methods of production in content of ranging codes of the GPS signal.Then the author simulates several usual Pseudo Random Noise Codes of GPS signal by MATLAB.The generated sequence is proved accurate after comparing to the real PRN.This paper provides a basis of research about how to receive and decode GPS staltite signal.

关 键 词：GPS 伪随机码 测距码 线性移位寄存器 

分 类 号：TP272[自动化与计算机技术—检测技术与自动化装置]