發(fā)布時(shí)間：2018-04-26 19:41

  本文選題：GNSS + 網(wǎng)絡(luò)RTK��； 參考：《昆明理工大學(xué)》2017年碩士論文

【摘要】：目前,連續(xù)運(yùn)行參考站系統(tǒng)相關(guān)的技術(shù)及應(yīng)用是測(cè)繪屆的研究熱點(diǎn)之一,世界上很多國(guó)家和地區(qū)相繼建立了自己的CORS系統(tǒng)。經(jīng)過(guò)對(duì)CORS系統(tǒng)多年不斷的研究和實(shí)踐,無(wú)論是該系統(tǒng)的技術(shù)水平還是工程建立技術(shù)水平都已逐漸成熟。建立CORS系統(tǒng)是一個(gè)嚴(yán)謹(jǐn)而又復(fù)雜的系統(tǒng)工程,包括了 CORS系統(tǒng)數(shù)據(jù)采集、傳輸、處理、改正、應(yīng)用整個(gè)流程。首先本文給出了 CORS系統(tǒng)的定義,介紹了 CORS系統(tǒng)的基本原理和結(jié)構(gòu)組成。與此同時(shí),本文介紹了 CORS系統(tǒng)關(guān)鍵的幾個(gè)網(wǎng)絡(luò)RTK技術(shù),詳細(xì)介紹了該技術(shù)的基本原理和實(shí)際運(yùn)用情況。此外,本文還介紹了 CORS系統(tǒng)定位的誤差來(lái)源及影響,并分析了消除或者減弱該誤差的方法。然后本文重點(diǎn)介紹了 CORS系統(tǒng)控制中心軟件的結(jié)構(gòu)組成和功能。該控制中心軟件由五個(gè)模塊組成,分別是參考站網(wǎng)模塊、數(shù)據(jù)處理模塊、控制中心模塊、數(shù)據(jù)通訊模塊和用戶(hù)模塊。其中數(shù)據(jù)處理模塊和控制中心模塊是整個(gè)CORS系統(tǒng)控制中心軟件的核心。本文詳細(xì)的闡述了這五個(gè)模塊的功能和它們之間的聯(lián)系。此外還介紹了數(shù)據(jù)在這五個(gè)模塊之間的傳輸進(jìn)行了闡述。最后本文選取了目前國(guó)內(nèi)運(yùn)用較為廣泛的三種控制中心軟件進(jìn)行對(duì)比分析。在這三種控制中心軟件覆蓋的范圍內(nèi)進(jìn)行數(shù)據(jù)采集,根據(jù)采集的數(shù)據(jù)分別進(jìn)行內(nèi)符合精度、外符合精度、時(shí)間可用性、空間可用性、初始化時(shí)間、網(wǎng)絡(luò)延遲和GNSS接收機(jī)兼容性做了詳細(xì)的分析。同時(shí)也對(duì)三種控制中心軟件的聯(lián)網(wǎng)能力、自運(yùn)行能力、預(yù)警能力、監(jiān)控能力做了測(cè)試。本文通過(guò)對(duì)三種不同CORS系統(tǒng)控制中心軟件下采集的數(shù)據(jù)分析之后得到了一些有益的結(jié)論。這些結(jié)論為以后CORS系統(tǒng)的工程建設(shè)、系統(tǒng)測(cè)試、數(shù)據(jù)分析等方面具有一定參考意義。
[Abstract]:At present, the related technology and application of continuous operation reference station system is one of the research hotspots in surveying and mapping field. Many countries and regions in the world have established their own CORS system one after another. After many years of research and practice on CORS system, both the technical level of the system and the technical level of engineering establishment have gradually matured. The establishment of CORS system is a rigorous and complex system engineering, including the CORS system data acquisition, transmission, processing, correction, application of the entire process. Firstly, the definition of CORS system is given, and the basic principle and structure of CORS system are introduced. At the same time, this paper introduces several key network RTK technologies in CORS system, and introduces the basic principle and practical application of this technology in detail. In addition, this paper also introduces the source and influence of positioning error in CORS system, and analyzes the methods to eliminate or weaken the error. Then, this paper introduces the structure and function of CORS system control center software. The control center software consists of five modules, namely, reference station network module, data processing module, control center module, data communication module and user module. The data processing module and the control center module are the core of the control center software of the whole CORS system. This paper describes the functions of the five modules and the relationship between them in detail. In addition, the transmission of data between the five modules is described. Finally, this paper selects three kinds of control center software which are widely used in our country to carry on the contrast analysis. The data acquisition is carried out within the scope of the software coverage of the three control centers. According to the collected data, the internal coincidence accuracy, the external coincidence precision, the time availability, the spatial availability, the initialization time are carried out respectively. Network delay and GNSS receiver compatibility are analyzed in detail. At the same time, the network ability, self-running ability, early warning ability and monitoring ability of three kinds of control center software are tested. In this paper, some useful conclusions are obtained by analyzing the data collected under three different CORS system control center software. These conclusions have certain reference significance for the engineering construction, system test and data analysis of CORS system in the future.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：P228.4;TP319

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