GPS数据处理研究论文.doc

本科学生毕业论文 GPS数据处理研究 院系名称： 专业班级： 学生姓名： 指导教师： 职 称： 二○一二年六月 The Graduation Thesis for Bachelors Degree Study on Data Processing of GPS Candidate：Specialty：Surveying Engineering Class： Supervisor： 2012-06·Harbin  摘 要 GPS技术作为一种全新的测量手段，在国家大地网、城市控制网、工程控制网的建立与改造等方面已经得到普遍应用，其技术的先进性、优越性已为众多科技工作者所认同。 高等级、高精度GPS 控制网一般指范围较大、精度较高的一类控制网，它可以是局部网、国家基础网、地震监测网、甚至全球网。这类网一般点数较多、点间距较长(几十、几百公里或上千公里)，例如总参测绘局布设的GPS一、二级网，国家测绘局布设的A、B 级网，用于地震预报的地震监测网，各省市的A、B 级网，连续运行参考站系统的基准站网等。 结合在测量工程中应用ASHTECH和TRIMBLE GPS接收机的实践，本文主要说明了GPS数据处理过程中，对基线向量解算的人为干预处理、独立边的选取、闭合环检查、限制GPS网的投影长度变形及其成果的检验问题。在针对相关工程项目中，对GPS数据处理的应用做了相应的分析对比。结合天宝TGO、徕卡LGO数据处理软件，对其数据处理流程及结果的对比也做了相应分析。 本文结合理论基础，从一定层面上，阐述了GPS数据处理的重要性和可靠性。 关键词：GPS；控制网：精度；数据处理  Abstract GPS technology?as a new?means of measurement,?has been in the national geodetic network,the city control,engineering control network establishment and transformation of the universal application of its advanced technology,the advantage have been recognized by numbers scientisfic and technological workers. High-grade, high-precision GPS control network generally refers to a large range and high-precision control network, it can be a local network, the national infrastructure network, the seismic network, or even global network. More general points of such networks, the point spacing is longer (tens, hundreds of kilometers or thousands of kilometers), for example, laid by the General Staff Headquarters Bureau of Surveying and Mapping GPS, one or two network laid by the State Bureau of Surveying and Mapping, B-class network, using in earthquake prediction, seismic monitoring network, the provinces and cities A, B-class network, continuously operating reference station system base station network. Combined with the practice of ASHTECH and TRIMBLE GPS receiver measurement project, the paper illustrates the main GPS data processing, human intervention in solving the baseline vector processing, the selectio