摘要随着美国GPS全球定位技术的发展,在武器制导方面受到了军方的广泛关注,使得全球定位技术的研究有了更加重大的战略意义。
近年来,伴随电子制造业硬件和软件的发展,GPS软件接收机正成为一个活跃的研究方向。它的核心是用现有的DSP或者FPGA器件实现对GPS数字中频信号的捕获、跟踪和位置计算。
本文学习了卫星导航的基本原理,主要研究了GPS接收机信号捕获算法中的串行滑动相关算法,学习了DSP嵌入式的编程方法,在CCS环境下编写设计了高性能卫星信号捕获算法的代码。并且在仿真平台上进行试验,验证了算法和程序的正确。65311
毕业论文关键词 GPS信号捕获 卫星导航 DSP嵌入式编程 CCS 串行滑动相关算法
毕业设计说明书(论文)外文摘要
Title DSP-based signal acquisition algorithm for GPS receivers
Abstract
With the U.S. GPS global positioning technology, in terms of weapons guided by the military's attention, making global positioning technology research have a more strategic significance.
In recent years, with the electronics manufacturing hardware and software development, GPS software receiver is becoming an active research. It is the core of existing DSP or FPGA devices to achieve the GPS digital IF signal acquisition, tracking, and position calculation.
This paper studied the basic principles of satellite navigation, mainly studied the GPS receiver serial signal acquisition algorithm sliding correlation algorithm and learn DSP embedded programming method. The CCS environment designed to prepare high-performance satellite signal acquisition algorithm code. And tested in the simulation platform to verify the algorithm and the program is correct.
Keywords GPS signal acquisition ; Satellite navigation; DSP Embedded Programming ; CCS; Serial sliding correlation algorithm
目 次
1 引言 1
1.1 课题研究的背景及意义 1
1.3 研究内容和主要工作 3
2 卫星导航基本理论及工作原理 4
2.1 GPS全球定位系统的组成 4
2.2 GPS定位原理 4
2.3 GPS信号的基本结构 5
2.4 本章小结 6
3 GPS信号捕获基本原理和算法 7
3.1 GPS接收机基本概述 7
3.2 GPS接收机结构 9
3.3 GPS捕获算法概述 10
3.4 串行滑动相关法 11
3.4 本章小结 13
4 GPS接收机的DSP控制实现 14
4.1 开发平台的硬件介绍 14
4.2 CCS环境下编写调试运行程序 16
4.3 本章小结 21
5 仿真实验平台的建立和实验结果分析 22
5.1 仿真平台搭建 22
5.2 卫星导航模拟器使用 23
5.3 仿真结果 基于DSP的GPS接收机信号捕获算法研究:http://www.751com.cn/zidonghua/lunwen_72877.html