本文關(guān)鍵詞： GPS 捕獲 跟蹤 多通道 FPGA 定位　出處：《北京交通大學(xué)》2014年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：摘要：現(xiàn)在衛(wèi)星導(dǎo)航定位系統(tǒng)已經(jīng)廣泛的運(yùn)用在軍事和民用部門(mén),繼美國(guó)和俄羅斯后我國(guó)也成功的開(kāi)發(fā)出北斗導(dǎo)航定位系統(tǒng),所以對(duì)衛(wèi)星定位接收機(jī)技術(shù)的研究勢(shì)在必行。本論文主要對(duì)的GPS接收機(jī)的多通道捕獲跟蹤在FPGA上設(shè)計(jì)進(jìn)行了研究和實(shí)現(xiàn),同時(shí)進(jìn)行了相對(duì)偽距定位算法的研究。本論文使用的是頻點(diǎn)跳變法捕獲跟蹤衛(wèi)星,相位跳變法解獲星歷。實(shí)現(xiàn)多通道捕獲跟蹤并準(zhǔn)確的解出導(dǎo)航電文后,需要給定位算法軟件提供導(dǎo)航信息參數(shù)和不同衛(wèi)星到達(dá)接收機(jī)的時(shí)間差。 首先論文闡述了GPS定位系統(tǒng)的基本概念、衛(wèi)星的捕獲跟蹤的基礎(chǔ)原理、GPS衛(wèi)星定位的基本原理和方法。然后在硬件部分,為了實(shí)現(xiàn)FPGA上多通道捕獲跟蹤并成功解除導(dǎo)航電文,分別對(duì)設(shè)計(jì)當(dāng)中的單通道捕獲、單通道跟蹤、衛(wèi)星信息傳輸和分配、時(shí)間間隔計(jì)數(shù)和數(shù)據(jù)上傳六個(gè)模塊在FPGA里的實(shí)現(xiàn)方法進(jìn)行了分析和驗(yàn)證。單通道捕獲跟蹤部分重點(diǎn)介紹頻點(diǎn)跳變法捕獲跟蹤和相位跳變法解獲星歷,捕獲傳輸和分配部分完成了把捕獲到的衛(wèi)星信息實(shí)時(shí)和不重復(fù)的分配給多個(gè)通道,時(shí)間間隔計(jì)數(shù)部分主要的功能是提取出各顆衛(wèi)星到達(dá)接收機(jī)的時(shí)間差,數(shù)據(jù)上傳部分把解出的星歷和時(shí)間差以固定的格式傳送給定位軟件。最后本論文對(duì)相對(duì)偽距定位算法和軟件實(shí)現(xiàn)進(jìn)行了研究。 通過(guò)對(duì)設(shè)計(jì)的仿真驗(yàn)證,成功的實(shí)現(xiàn)了多通道捕獲跟蹤并且準(zhǔn)確的解出衛(wèi)星星歷。使用這種多通道跟蹤方法可以有效的利用硬件資源,減小功耗。本論文對(duì)相對(duì)偽距定位算法及軟件的研究,也為以后精確定位提供了理論基礎(chǔ)。
[Abstract]:Absrtact: now the satellite navigation and positioning system has been widely used in the military and civil departments, after the United States and Russia, China has successfully developed the Beidou navigation and positioning system. Therefore, it is imperative to study the technology of satellite positioning receiver. This paper mainly focuses on the design and implementation of multi-channel acquisition and tracking of GPS receiver on FPGA. At the same time, the relative pseudo-range location algorithm is studied. In this paper, the frequency hopping method is used to capture and track satellite, the phase jump method to solve the ephemeris, to achieve multi-channel acquisition and tracking and accurate solution of navigation message. The navigation information parameters and the time difference between different satellites arriving at the receiver should be provided to the localization algorithm software. Firstly, the paper describes the basic concept of GPS positioning system, the basic principle of satellite capture and tracking, and the basic principle and method of GPS positioning. Then, in the hardware part. In order to realize the multi-channel capture and tracking on FPGA and successfully release the navigation message, the single channel acquisition, single channel tracking, satellite information transmission and distribution in the design are carried out respectively. The implementation method of six modules of time interval counting and data uploading is analyzed and verified in FPGA. In the part of single channel capture and tracking, the frequency hopping capture tracking and phase hopping method are introduced to solve the ephemeris. The acquisition transmission and distribution part completes the real-time and non-repeated allocation of the captured satellite information to multiple channels. The main function of the time interval counting section is to extract the time difference between each satellite to the receiver. The data upload part transfers the calculated ephemeris and time difference to the location software in a fixed format. Finally, the relative pseudo-range localization algorithm and the software implementation are studied in this paper. Through the simulation verification of the design, the multi-channel capture and tracking is successfully realized and the satellite ephemeris is solved accurately. Using this multi-channel tracking method, the hardware resources can be used effectively. In this paper, the research of relative pseudo-range location algorithm and software also provides a theoretical basis for future accurate positioning.
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TN96.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 王金剛;;GPS數(shù)字中頻信號(hào)仿真及捕獲驗(yàn)證[J];重慶郵電大學(xué)學(xué)報(bào)(自然科學(xué)版);2010年02期

2 籍利平;基于北斗導(dǎo)航衛(wèi)星的偽衛(wèi)星技術(shù)在區(qū)域定位中的應(yīng)用[J];測(cè)繪科學(xué);2002年04期

3 戴志軍;柳林濤;許厚澤;劉根友;;GPS軟件接收機(jī)捕獲算法的研究[J];大地測(cè)量與地球動(dòng)力學(xué);2006年03期

4 汪平;郝金明;沈國(guó)康;王浩宇;;GPS單點(diǎn)定位觀(guān)測(cè)值的精度分析與改進(jìn)[J];大地測(cè)量與地球動(dòng)力學(xué);2009年03期

5 夏金偉;趙東保;;GPS接收機(jī)多路徑性能分析[J];測(cè)繪與空間地理信息;2012年08期

6 鄧洪高;王靖;紀(jì)元法;孫希延;;一種快速FFT捕獲算法及其FPGA實(shí)現(xiàn)研究[J];電視技術(shù);2012年15期

7 李繼忠;李巍;;GPS信號(hào)快速捕獲方案研究[J];航空電子技術(shù);2006年02期

8 薛雅娟;;GPS接收機(jī)數(shù)字基帶信號(hào)處理算法研究[J];計(jì)算機(jī)仿真;2009年03期

9 周婧;張怡;張航;;全球定位系統(tǒng)的差分偽距定位的算法研究[J];科學(xué)技術(shù)與工程;2008年04期

10 劉鈍,曹沖;GPS軟件接收機(jī)的發(fā)展前景[J];全球定位系統(tǒng);2003年03期

，

本文編號(hào)：1491989