GPS工程控制网论文：带状工程GPS控制网数据处理方法研究及其软件研制-【word】可编辑

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2、膂莄螈肇羅莀螇螇芀芆螆衿肃薅螆羁芈蒁螅肄肁莇袄螃芇芃蒀袆肀腿葿羈芅蒇葿蚈肈蒃蒈袀莃荿蒇羂膆芅蒆肄罿薄蒅螄膄蒀蒄袆羇莆薃罿膃节薃蚈羆膈薂袁膁薇薁羃肄蒃薀肅艿荿蕿螅肂芅薈袇芈膀薇羀肀葿蚇虿芆莅蚆螂聿芁蚅羄芄芇蚄肆膇薆蚃螆羀蒂蚂袈膅莈蚁羀羈芄蚁蚀膄膀螀螂羆蒈蝿袅膂莄螈肇羅莀螇螇芀芆螆衿肃薅螆羁芈蒁螅肄肁莇袄螃芇芃蒀袆肀腿葿羈芅蒇葿蚈肈蒃蒈袀莃荿蒇羂膆芅蒆肄罿薄蒅螄膄蒀蒄袆羇莆薃罿膃节薃蚈羆膈薂袁膁薇薁羃 GPS工程控制网论文：带状工程GPS控制网数据处理方法研究及其软件研制【中文摘要】目前,我国正在大规模建设铁路客运专线。为了适应高速行车的需要,解决线路维修的困难,高平顺性、少维修的无砟轨道得到了广

3、泛的应用。无砟轨道与有砟轨道的最大区别是无砟轨道铺板、铺轨要求的精度高,轨道板和轨道安装的可调量较小,这就对高速铁路GPS控制网提出了更高的要求。采用国家坐标系统的普速铁路勘测设计,允许的长度变形误差为25mm/km,难以满足高速铁路长度变形误差<10mm/km的高精度要求。尽管有部分线路为了达到长度变形小于10mm/km的要求而把带宽变窄,但是这就带来了一条线路分带及坐标系过多、换带计算繁琐、换带后相邻点间相对精度降低等一系列问题,给后续的勘测设计、施工和运营检测带来极大的不便。基于上述问题,本文首先探讨了GPS工程控制网数据处理的常规算法,系统分析了GPS工程控制网的长度变形特点与处

4、理手段。然后结合高速铁路GPS控制网控制范围长、投影变形要求小的特点,提出了采用分区代替分带、利用全网整网平差的方向实现全网坐标轴系的唯一和进行方向控制、从线路一端到另一端顺序平差的分区定向序贯平差新方法。对高速铁路CPI控制网采用分区定向序贯平差的方法建立坐标系和进行网平差,通过理论分析和与全站仪实测边长的比较,证明其投影变形能够控制得更好,控制网的投影面更贴近地面,因而更符合建立工程独立坐标系的要求。对GPS带状工程控制网采用分区定向序贯平差,实现了全线一个坐标系统,没有换带计算,这就为实现高速铁路GPS控制网小变形、无换带的目标奠定了基础,为集勘测设计、施工和运营于一体的“三网合一”的高

5、精度GPS平面控制网的建立创造了条件。最后,根据所提出的分区定向序贯平差原理,基于微软公司发布的Microsoft Visual Studio2008平台,使用C#语言研制了精密工程GPS控制网通用数据处理软件(简称SOSA GPS软件)。SOSA GPS软件支持了多种基线格式和椭球参数,既有验前精度检查又有验后精度评定,除具有常规GPS控制网数据处理的全部功能外,还具有GPS控制网分区定向序贯平差的功能,能够实现在较大范围内高速铁路CPI GPS控制网的高精度、小变形、全线没有换带计算的数据处理目标。【英文摘要】Recently, a large scale of passenger-ded

6、icated railway construction is blooming in our country. For the sake of high-speed train running and overcoming the difficulty of line maintenance, the ballastless track with better smoothness and little maintenance, is applied widely. What makes the ballastless track significantly different from th

7、e ballast one are the higher precision demand of slab and track lying, as well as the smaller adjustment of track slab installation.Therefore, it sets a higher demand for GPS control network of high-speed railway.In common railway surveying and design which is based on state coordinate system, 25mm/

8、km, the distortion error in length, is acceptable, but not in high-speed railway, where, for higher precision, the error is essentially no more than 10mm/km.In some railway construction,narrowing the projection zone could ensure the distortion error below 10mm/km to satisfy the demand, but it comes

9、with a series of problems, such as too many projection zones and coordinates systems in one line, minute and complicated computation of projection zone conversion, relative precision decline between adjacent points after projection zone conversion and so on, bring great inconvenience into the future

10、 work as surveying, design, construction, operation and detection.Based on the above issues, firstly the paper discusses the traditional way in data processing of GPS control network, and systematically analyzes the figures and treatment of length distortion in the network.Then, combined with the lo

11、ng control range and small projection distortion in GPS control network of high-speed railway, in this paper a new method named Subsection Orientational Sequential Adjustment, SOSA for abbreviation, is put forward. That is the “subsection” replaces the “projection zone”, the direction after the whol

12、e network adjustment computation ensure it unique the axes of all coordinate systems in the network, and the adjustment computation goes from one side of the line to the other one by one. In the coordinate system establishment and the network adjustment computation of CP I control network of high-sp

13、eed railway, the theoretical analysis and the contrast between calculated length and measured length with total stations have proved that, when using SOSA method, the projection distortion error of length is smaller and the projection plane is closer to the groud and so the coordinate system satisfi

14、es the demand of building an independent engineering coordinates system. To use SOSA method in GPS zonary engineering control network, it realizes the only one coordinate system in one line without computation of projection zone conversion, which lays the foundation for achieving the goal of small d

15、istortion and no conversion in GPS control network of high-speed railway, and creates the conditions to found a high precise GPS plane control network that can serve surveying, design, construction and operation as a tri-network-integrating-one network.At last, according to the principle of SOSA, gr

16、ounded on the program design platform of Microsoft Visual Studio 2008, General Data Processing Software for GPS Control Network of Precise Engineering, SOSA GPS for short, has been developed with C#. The software supports various baseline formats and ellipsoid parameters, has precision evaluation of

17、 apriority and posteriority, and beside all of common data processing methods to GPS control network, SOSA method works well, which can gain the fruit of high precision、little distortion、no conversion in the whole line in a larger scale of CP I GPS control network of high-speed railway.【关键词】GPS工程控制网

18、 分区定向序贯平差 高斯投影 高程归化 软件【英文关键词】GPS engineering control network Subsection Orientational Sequential Adjustment (SOSA) Gauss projection elevation naturalization software【目录】带状工程GPS控制网数据处理方法研究及其软件研制 摘要 6-7 Abstract 7-8 第1章 绪论 11-14 1.1 概述 11 1.2 带状工程GPS控制网建网与数据处理方法现状 11-12 1.3 问题的提出及本文的主要研究内容 12-14 第2章 G

19、PS数据处理常用方法及其长度变形分析 14-34 2.1 GPS数据处理常用坐标系统及其坐标转换 14-19 2.1.1 空间直角坐标系 14 2.1.2 空间大地坐标系 14-15 2.1.3 高斯投影与UTM投影平面直角坐标系 15-16 2.1.4 不同坐标系的坐标转换 16-19 2.2 典型GPS工程控制网平差方法 19-28 2.2.1 GPS工程控制网三维向量网平差 20-25 2.2.2 GPS工程控制网二维约束平差 25-28 2.2.3 GPS工程控制网一点一方向平差 28 2.3 GPS工程控制网的长度变形分析与处理 28-34 2.3.1 高程归化与高斯投影引起的长度变

20、形分析 28-30 2.3.2 GPS工程控制网的工程椭球建立方法 30-31 2.3.3 GPS工程控制网独立坐标系的建立与变形分析 31-34 第3章 分区定向序贯平差原理及其特点 34-45 3.1 高速铁路GPS控制网坐标系统的设计方法 34-35 3.2 GPS工程控制网分区定向序贯平差原理 35-38 3.3 分区定向序贯平差实测数据计算试验与分析 38-43 3.4 分区定向序贯平差在CPI控制网中的应用特点 43-45 第4章 精密工程GPS控制网通用数据处理软件研制 45-61 4.1 开发平台、语言与运行环境 45-47 4.1.1 开发平台简介 45 4.1.2 开发语言简介 45-46 4.1.3 运行环境 46-47 4.2 功能设计模块与处理流程 47-57 4.2.1 功能设计 47-48 4.2.2 功能模块 48-57 4.2.3 数据处理流程 57 4.