本文選題：GNSS多系統(tǒng)融合 + 短基線��； 參考：《安徽理工大學(xué)》2016年碩士論文

【摘要】：隨著GNSS技術(shù)的發(fā)展,特別是我國(guó)北斗衛(wèi)星導(dǎo)航系統(tǒng)的第二步計(jì)劃的完成,多頻多系統(tǒng)GNSS融合應(yīng)用將成為GNSS導(dǎo)航定位主要發(fā)展趨勢(shì)之一；目前具備獨(dú)立服務(wù)能力的系統(tǒng)包括GPS、GLONASS和BDS；多系統(tǒng)融合,能極大地改善冗余度,改善定位精度,提高定位的穩(wěn)定性,改善導(dǎo)航質(zhì)量。本文主要研究工作：1)在研究GNSS多系統(tǒng)融合的時(shí)間系統(tǒng)與坐標(biāo)系統(tǒng)統(tǒng)一理論與GNSS衛(wèi)星坐標(biāo)計(jì)算方法的基礎(chǔ)上提出了多系統(tǒng)融合的主體方案。2)研究并建立了GNSS多系統(tǒng)融合基本模型：基于非差與雙差的數(shù)學(xué)模型,基于高度角模型、信噪比模型與驗(yàn)后方差估計(jì)模型的隨機(jī)模型,對(duì)流層、電離層等誤差修改模型。3)研究并實(shí)現(xiàn)了GNSS多系統(tǒng)融合短基線解算關(guān)鍵技術(shù)：周跳探測(cè)技術(shù),基于序貫平差與卡爾曼濾波的浮點(diǎn)解計(jì)算技術(shù),LAMBDA算法固定模糊度技術(shù)。最后利用文中的算法開(kāi)發(fā)出了一套BDS/GPS/GLONASS系統(tǒng)融合的短基線解算處理軟件,并通過(guò)實(shí)驗(yàn)短基線數(shù)據(jù),重點(diǎn)分析對(duì)比了BDS/GPS/GLONASS單系統(tǒng)、雙系統(tǒng)以及三系統(tǒng)融合共7種模式下偽距單點(diǎn)、偽距雙差和載波雙差的定位性能,得出在短基線解算方面雙系統(tǒng)定位精度與穩(wěn)定性優(yōu)于單系統(tǒng),都能達(dá)到厘米級(jí)定位精度,三系統(tǒng)優(yōu)于雙系統(tǒng)的結(jié)論,從而驗(yàn)證了本軟件的正確性和實(shí)用性。
[Abstract]:With the development of GNSS technology, especially the completion of the second step plan of Beidou satellite navigation system in China, the application of multi-frequency and multi-system GNSS fusion will become one of the main developing trends of GNSS navigation and positioning. At present, the independent service systems include GPS-GLONASS and BDS.Multi-system fusion can greatly improve redundancy, positioning accuracy, positioning stability and navigation quality. On the basis of studying the unified theory of time system and coordinate system of GNSS multisystem fusion and the calculation method of GNSS satellite coordinate, this paper puts forward the main project of multi-system fusion. 2) and establishes the GNSS multi-system. Fusion of basic models: mathematical models based on non-difference and double-difference, Based on height angle model, signal-to-noise ratio model and posteriori variance estimation model, tropospheric and ionospheric error modification model. Floating-point solution based on Sequential Adjustment and Kalman filter A fixed ambiguity algorithm based on Lambda algorithm is presented. Finally, a short baseline solution software for BDS/GPS/GLONASS system fusion is developed by using the algorithm in this paper, and the pseudo-range single point in BDS/GPS/GLONASS single system, double system and three system fusion mode is analyzed and compared through the experimental short baseline data. The positioning performance of pseudo-range double difference and carrier double difference shows that the positioning accuracy and stability of the two systems are better than that of the single system in short baseline solution, and the positioning accuracy of the three systems is better than that of the double system, and the positioning accuracy of the three systems is better than that of the two systems. The correctness and practicability of the software are verified.
【學(xué)位授予單位】：安徽理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：P228.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 劉春保;;2015年全球?qū)Ш叫l(wèi)星發(fā)展回顧[J];國(guó)際太空;2016年02期

2 汪亮;李子申;袁洪;周凱;;BDS/GPS/GLONASS組合的雙頻單歷元相對(duì)定位性能對(duì)比分析[J];科學(xué)通報(bào);2015年09期

3 劉基余;;攻占GNSS高動(dòng)態(tài)高精度測(cè)量制高點(diǎn)的思考——關(guān)于北斗衛(wèi)星導(dǎo)航信號(hào)的一項(xiàng)應(yīng)用建議[J];遙測(cè)遙控;2014年02期

4 寧津生;姚宜斌;張小紅;;全球?qū)Ш叫l(wèi)星系統(tǒng)發(fā)展綜述[J];導(dǎo)航定位學(xué)報(bào);2013年01期

5 王江林;文述生;;GNSS多系統(tǒng)靜態(tài)基線數(shù)據(jù)的統(tǒng)一處理方法[J];導(dǎo)航定位學(xué)報(bào);2013年01期

6 張偉斌;金永新;袁本銀;;基于BeiDou/GPS雙系統(tǒng)的三峽滑坡監(jiān)測(cè)預(yù)警系統(tǒng)[J];測(cè)繪通報(bào);2013年02期

7 高星偉;過(guò)靜s，

本文編號(hào)：1816855