基于System Generator的GPS信号捕获模块的实现  

Implementation of GPS Signal Acquisition Module Based on System Generator

作　　者：胡辉[1] 吴超[1] 张虎[1] 高明华[1] 

机构地区：[1]华东交通大学信息工程学院,南昌330013

出　　处：《河南师范大学学报（自然科学版）》2012年第1期50-53,共4页Journal of Henan Normal University(Natural Science Edition)

基　　金：江西省教育厅科学技术研究项目(GJJ10458);江西省工业支撑计划(赣财教[2010]229号)

摘　　要：System Generator for DSP是业内领先的高级系统级FPGA开发工具.本文基于该软件设计并实现了4通道GPS信号捕获模块,其中包括平均采样、本地C/A码、FFT/IFFT运算、复数乘法运算、扫频控制和结果返回等6个模块,并利用Xilinx的Viertx-5XC5VSX50T-FF665芯片对模块进行了硬件协同验证.测试结果表明:设计实现的捕获模块能够准确地捕获GPS信号,与利用硬件描述语言的方法相比,本文的方法大大缩短了开发周期.Model design software—System Generator for DSP is the industry leader in advanced system—level FPGA development tools.In this paper,based on System Generator,a GPS signal acquisition module of four channels is designed and implemented.The module contained six modules totally,which are the average sampling module,the local C/A code module,the FFT/IFFT calculation module,the complexing multiple calculation module,the sweeping frequency controlling module and the results returning module.Viertx-5 XC5VSX50T-FF665 FPGA chip of Xilinx is used on the module＇s hardware co-verification.The experimental results show that the GPS signal acquisition module designed and implementated could capture the GPS signal accurately,comparing to the traditional hardware description language method,the method described in this paper could reduce the development time cycle greatly.

关 键 词：SYSTEM GENERATOR FPGA GPS信号捕获 Viertx-5XC5VSX50T 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]