可移动分布式地震资源勘探装置采集车GPS定位技术研究
本文主要基于matlab软件进行对伪距差分定位技术模型的仿真，包括：地球模型、轨道模型及运行模型联系仿真误差及差分信息来仿真差分定位技术实现的过程。通过比较各算法特点，选出伪距差分定位最适合该研究应用，故全文重点在于伪距差分算法的研究。同时也完成硬件电路设计及软件流程分析。
关键字 基站数据获取 GPS移动站 伪距差分定位
毕业论文设计说明书外文摘要
Title Mobile distributed seismic exploration device Research on GPS positioning technology of vehicle acquisition
Abstract
GPS positioning technology in the last century 90's into the market.why Wide application in navigation, aviation, geodetic survey and people's daily life is the excellent performance of GPS.what greatly reduce the GPS accuracy is that the U.S. government to take the SA and AS policy.Differential positioning technology came into being in order to break the American government policy constraints.This paper centers on the accurate localization algorithm of GPS search and localization algorithm in the exploration system of mobile distributed seismic resources.
This paper mainly based on the software MATLAB for the differential positioning technology model simulation.Included module of earth,satellite orbit,satellite run and simulation error and differential information.To simulate the process of differential positioning technology.According to the characteristics of the algorithm,the pseudo range difference locating is the best for the research. The full text emphasis is the research on the pseudo range difference algorithm. At the same time, the hardware circuit design and software flow analysis.
Keywords Get information from reference station GPS mobile receivers Pseudo range difference positioning
目次
1 绪论
1.1介绍课题背景1
1.2文献综述1
1.3本论文的内容介绍3
2 地震采集车GPS差分定位的总体思路.4
2.1GPS差分定位的基本思想介绍.4
2.2地震采集器GPS差分定位的实现方案.7
2.3地震采集器GPS差分定位的算法确定.9
3 GPS差分定位的算法研究14
3.1GPS基站信息的获取.14
3.2GPS移动站的建立.16
3.3GPS差分定位的算法研究及实现.20
4 GPS差分定位算法的仿真验证24
4.1算法仿真方案介绍24
4.2算法仿真及结果评价29
5 GPS差分定位运行测试34
6 总结36
致谢37
参考文献38
1.绪论
1.1课题研究背景
可移动分布式地震资源勘探系统是一种全新设计理念的资源勘探系统，采集车是勘探系统的核心单元，对应传统勘探系统的一个采集点，由车体、检波器插置装置、无线遥控数据采集器构成，担负检波器运载、插置及精确定位，地震数据采集及传输等关键任务。其中检波器的定位是重要的研究内容，直接关系到地震资源勘探数据的有效性，本课题专门研究采集车（检波器）的GPS差分精确定位算法及软件实现，包括GPS基站的数据获取与解析；GPS移动站的数据获取方式与差分算法理论研究及差分定位技术算法的软件实现。通过差分算法的应用，可实现采集车的分米级定位。