本文關(guān)鍵詞： 完好性 GNSS RAIM 廣域增強(qiáng)系統(tǒng) SISE　出處：《長(zhǎng)安大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著GNSS技術(shù)在世界范圍內(nèi)的迅速發(fā)展，GNSS技術(shù)在公共運(yùn)輸領(lǐng)域特別是在生命安全相關(guān)行業(yè)中的應(yīng)用日益廣泛，使人們對(duì)其導(dǎo)航性能中完好性的要求愈加嚴(yán)格，以保障導(dǎo)航定位安全。因此，本文針對(duì)此方面開展了系列研究，主要的研究工作和成果如下： （1）系統(tǒng)討論了目前GNSS完好性監(jiān)測(cè)技術(shù)的理論和方法，將其分為衛(wèi)星端完好性監(jiān)測(cè)、地面端完好性監(jiān)測(cè)和用戶端完好性監(jiān)測(cè)三類。重點(diǎn)分析了地面端和用戶端的完好性監(jiān)測(cè)技術(shù)，其中包括接收機(jī)端自主完好性監(jiān)測(cè)、廣域增強(qiáng)系統(tǒng)完好性監(jiān)測(cè)及Galileo系統(tǒng)完好性監(jiān)測(cè)技術(shù)，，并對(duì)其中算法和相關(guān)問題進(jìn)行仿真和討論。 （2）論述了接收機(jī)端完好性監(jiān)測(cè)模型及算法，指出GPS/GLONASS組合較GPS單系統(tǒng)在可用性及RAIM空洞預(yù)報(bào)方面有較大優(yōu)勢(shì)。研究了RAIM的基礎(chǔ)算法，提出基于滑動(dòng)開窗的RAIM算法，通過(guò)算例分析可知該算法比通常的RAIM算法無(wú)論在可用性判斷上，還是故障檢測(cè)與識(shí)別方面都有較大優(yōu)勢(shì)。最后介紹了測(cè)時(shí)完好性監(jiān)測(cè)理論和方法，通過(guò)基于滑動(dòng)開窗RAIM算法的測(cè)時(shí)算法與普通的測(cè)時(shí)完好性算法進(jìn)行仿真對(duì)比，發(fā)現(xiàn)前者在各項(xiàng)指標(biāo)上依然具有較大優(yōu)勢(shì)。 （3）介紹了GPS廣域增強(qiáng)系統(tǒng)完好性監(jiān)測(cè)的主要流程，對(duì)WAAS系統(tǒng)完好性監(jiān)測(cè)的主要參數(shù)UDRE與GIVE進(jìn)行理論和算法分析。同時(shí)對(duì)相關(guān)的RURA與UIVE參數(shù)的模型與算法進(jìn)行介紹分析。對(duì)上述完好性參數(shù)進(jìn)行仿真分析，可知在參考站數(shù)目較少的情況下，UDRE和GIVE會(huì)出現(xiàn)不可用的情況，無(wú)法滿足WAAS對(duì)其要求。 （4）對(duì)Galileo系統(tǒng)完好性監(jiān)測(cè)體系進(jìn)行了詳細(xì)介紹，并給出Galileo系統(tǒng)完好性監(jiān)測(cè)的主要指標(biāo)參數(shù)：空間信號(hào)誤差SISE，空間信號(hào)誤差精度SISA，空間信號(hào)監(jiān)測(cè)精度SISMA。重點(diǎn)分析了此三種完好性參數(shù)的理論與算法，通過(guò)仿真可知，僅利用監(jiān)測(cè)區(qū)域內(nèi)少量的監(jiān)測(cè)站，無(wú)法滿足Galileo系統(tǒng)完好性監(jiān)測(cè)的要求，但可增加監(jiān)測(cè)站數(shù)目，提高完好性監(jiān)測(cè)指標(biāo)。
[Abstract]:With the rapid development of GNSS technology in the world, it is widely used in the field of public transportation, especially in life safety related industries. In order to ensure the safety of navigation and positioning, a series of research is carried out in this paper. The main research work and results are as follows: In this paper, the theory and method of GNSS integrity monitoring technology are systematically discussed, which can be divided into satellite side integrity monitoring. There are three types of land-based integrity monitoring and client integrity monitoring. The paper focuses on the analysis of the terrestrial and user side of the integrity monitoring technology, including the receiver side of the autonomic integrity monitoring. Wide-area enhancement system integrity monitoring and Galileo system integrity monitoring technology, and the algorithm and related issues are simulated and discussed. (2) the model and algorithm of receiver integrity monitoring are discussed. It is pointed out that GPS/GLONASS combination has more advantages than GPS single system in usability and RAIM cavity prediction. The basic algorithm of RAIM is studied. The RAIM algorithm based on sliding window opening is proposed, and the example analysis shows that the algorithm is better than the usual RAIM algorithm in usability judgment. Or fault detection and identification have a great advantage. Finally, the theory and method of timing integrity monitoring are introduced. Through the comparison of the time measurement algorithm based on sliding window RAIM algorithm and the common time measuring completion algorithm, it is found that the former still has great advantages in each index. The main process of GPS wide area enhancement system integrity monitoring is introduced. The main parameters of WAAS system integrity monitoring, UDRE and GIVE, are analyzed in theory and algorithm. At the same time, the models and algorithms of RURA and UIVE parameters are introduced and analyzed. The good parameters are simulated and analyzed. It is known that the UDRE and GIVE will not be available when the number of reference stations is small, which can not meet the requirements of WAAS. In this paper, the integrity monitoring system of Galileo system is introduced in detail, and the main index parameter of Galileo system integrity monitoring is given: spatial signal error SISE. Spatial signal error accuracy Sisa and spatial signal monitoring precision SISMA.Through analyzing the theory and algorithm of these three perfect parameters, we can know by simulation that only a few monitoring stations are used in the monitoring area. It can not meet the requirements of Galileo system integrity monitoring, but can increase the number of monitoring stations and improve the integrity monitoring index.
【學(xué)位授予單位】：長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：P228.4

【引證文獻(xiàn)】

相關(guān)博士學(xué)位論文 前1條

1 牛飛;GNSS完好性增強(qiáng)理論與方法研究[D];解放軍信息工程大學(xué);2008年

本文編號(hào)：1481300