本文選題：GPS　切入點：網(wǎng)質(zhì)量　出處：《西安科技大學》2013年碩士論文　論文類型：學位論文

【摘要】：南水北調(diào)中線工程可緩解京、津、華北地區(qū)水資源危機，大大改善供水區(qū)生態(tài)、環(huán)境和投資環(huán)境，推動我國中部地區(qū)的經(jīng)濟發(fā)展。南水北調(diào)中線工程是一項長期而艱巨的工程，由于受外界環(huán)境的影響，可能會造成控制點的位移或者丟失，為確保工程質(zhì)量，在施工中結(jié)合實際情況對原有控制網(wǎng)進行復測并優(yōu)化設(shè)計，以檢驗原有控制點坐標是否正確，以及控制網(wǎng)是否合理。 本文利用HC市GPS網(wǎng)數(shù)據(jù)，通過對比分析GPS基線的質(zhì)量、常規(guī)地面觀測值的質(zhì)量、起算數(shù)據(jù)的精度、數(shù)量和分布、GPS網(wǎng)的結(jié)構(gòu)以及數(shù)據(jù)處理方法的完備性對GPS網(wǎng)質(zhì)量的影響。研究了GPS網(wǎng)優(yōu)化設(shè)計的一些要求和內(nèi)容。得出如下結(jié)論： （1）GPS網(wǎng)的基本元素是GPS基線向量，基線向量的質(zhì)量的好壞決定了GPS網(wǎng)的質(zhì)量。在測量和數(shù)據(jù)處理中，必須采取一定的相應的質(zhì)量控制措施，，以確保其GPS基線能滿足項目的要求。 （2）起算點盡量分布在控制網(wǎng)區(qū)域范圍內(nèi)，起算點3-4個最佳，符合測量規(guī)范，精度能保證，工作量最小，費用低。 （3）對于一個特定的網(wǎng)來說，觀測值（包括GPS基線向量和常規(guī)地面觀測值）的數(shù)量越多，網(wǎng)的整體質(zhì)量越高。 （4）由于采用數(shù)學模型的不同以及數(shù)據(jù)處理的算法的不太一樣，由不同的數(shù)據(jù)處理軟件所處理的結(jié)果并不一樣。
[Abstract]:The South-to-North Water transfer Project can alleviate the water crisis in Beijing, Tianjin and North China, greatly improve the ecological, environmental and investment environment in the water supply areas, and promote economic development in the central region of China. The South-to-North Water transfer Middle Route Project is a long-term and arduous project. Due to the influence of the external environment, the displacement or loss of the control point may be caused. In order to ensure the quality of the project, the original control network is re-tested and optimized to check whether the coordinates of the original control point are correct or not in combination with the actual situation in the construction. And whether the control network is reasonable. In this paper, using HC GPS net data, the quality of GPS baseline, the quality of conventional ground observations and the accuracy of starting data are compared and analyzed. The influence of the quantity and distribution of GPS network structure and the completeness of data processing method on the quality of GPS net is studied. Some requirements and contents of GPS net optimization design are studied. The conclusions are as follows:. The basic element of the GPS network is the GPS baseline vector, the quality of the baseline vector determines the quality of the GPS net. In the measurement and data processing, certain quality control measures must be taken to ensure that the GPS baseline can meet the requirements of the project. The starting points are distributed in the control network area as far as possible, and the starting points are 3-4 best, which accord with the standard of measurement, the precision can be guaranteed, the workload is minimum, and the cost is low. For a particular network, the larger the number of observations (including GPS baseline vectors and conventional ground observations), the higher the overall quality of the network. 4) because of the different mathematical models and the different algorithms of data processing, the results processed by different data processing software are not the same.
【學位授予單位】：西安科技大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TV68;P228.4

【參考文獻】

相關(guān)期刊論文 前8條

1 陳俊勇,李健成,寧津生,張驥,張燕平;我國大陸高精度、高分辨率大地水準面的研究和實施[J];測繪學報;2001年02期

2 蔡述明,殷鴻福,杜耘,吳勝軍,李濤;南水北調(diào)中線工程與漢江中下游地區(qū)可持續(xù)發(fā)展[J];長江流域資源與環(huán)境;2005年04期

3 王敏,張祖勝,許明元,周偉,李鵬,尤曉青;2000國家GPS大地控制網(wǎng)的數(shù)據(jù)處理和精度評估[J];地球物理學報;2005年04期

4 鄭國寧,陳明劍;高斯平面上GPS工程網(wǎng)數(shù)據(jù)處理[J];解放軍測繪學院學報;1997年02期

5 劉經(jīng)南,劉焱雄;GPS衛(wèi)星定位技術(shù)進展[J];全球定位系統(tǒng);2000年02期

6 秦金虎;楊嵐;何雨江;秦金學;李志萍;許志榮;;南水北調(diào)中線工程河南受水區(qū)水量均衡分析[J];人民黃河;2008年07期

7 徐紹銓;隔河巖大壩GPS自動化監(jiān)測系統(tǒng)[J];鐵路航測;2001年04期

8 陳俊勇,文漢江,程鵬飛;中國大地測量學發(fā)展的若干問題[J];武漢大學學報(信息科學版);2001年06期

本文編號：1561151