北斗衛(wèi)星導航信號CUDA模擬算法與北斗軟件接收機設計
[Abstract]:With the rapid development of Beidou satellite navigation system, many kinds of Beidou terminals and related algorithms are facing more challenges. In this paper, the Beidou navigation signal simulation and the Beidou software receiver are studied. These two techniques have certain research value. Beidou navigation signal simulation technology can not only provide a test environment for the development of Beidou terminal, Beidou software receiver can overcome the disadvantages of hardware receiver which is difficult to upgrade, fixed parameters, poor flexibility, and can be used to verify the navigation algorithm. The specific contents of this paper are as follows: 1. The scheme of Beidou analog source system is designed, which is composed of hardware system based on AV1443 and simulation software of Beidou navigation signal. The hardware system adopts the read-write structure of FPGA DDR2, the FPGA module controls the reading and writing of DDR2, and the navigation simulation software adopts the heterogeneous structure of CPU GPU, which accelerates the running efficiency by the graphics card. Beidou if signal simulation algorithm is completed. On the basis of analyzing the structure of Beidou intermediate frequency signal, a signal propagation model and an error correction model are established to calculate the geometric propagation delay of the accurate signal, in order to control the code phase and carrier Doppler of the analog signal in real time. A dynamic Doppler model was established. In order to improve the efficiency of Beidou navigation signal simulation algorithm, the CUDA platform is used to accelerate the Beidou if signal simulation algorithm. On the basis of analyzing the CUDA computing model and storage type, the algorithm is parallelized, and the corresponding thread structure is designed to execute the kernel function, and the corresponding optimization is adopted to realize the efficient improvement of the algorithm. 4. The Beidou signal acquisition is realized by using local complementary zero sequence, and the influence of NH code on signal acquisition is eliminated, and the 2-D search of NH code phase and accurate carrier frequency is realized by frequency domain analysis. 5. On the basis of the steady tracking of Beidou signal, bit synchronization, NH code stripping, frame synchronization and so on are processed, and finally the location solution is realized.
【學位授予單位】:南京航空航天大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TN967.1
【參考文獻】
相關期刊論文 前10條
1 ;《中國北斗衛(wèi)星導航系統(tǒng)》白皮書[J];衛(wèi)星應用;2016年07期
2 曹義昆;丁傳紅;郝春朝;;衛(wèi)星導航信號模擬源的發(fā)展現(xiàn)狀及趨勢[J];中國新通信;2016年12期
3 孟騫;曾慶化;劉建業(yè);馮紹軍;;北斗軟件接收機中GEO衛(wèi)星定位策略[J];中國慣性技術學報;2016年03期
4 嚴昆侖;章紅平;張?zhí)嵘?牛小驥;;NH碼對新一代GNSS信號捕獲跟蹤的影響[J];武漢大學學報(信息科學版);2015年05期
5 劉國峰;孟小紅;劉洪;;用GPU提速地震資料單程波有限差分疊前深度偏移(英文)[J];Applied Geophysics;2012年01期
6 顧青;高能;包珍珍;向繼;;基于GPGPU和CUDA的高速AES算法的實現(xiàn)和優(yōu)化[J];中國科學院研究生院學報;2011年06期
7 侯博;謝杰;劉光斌;;衛(wèi)星信號模擬器的發(fā)展現(xiàn)狀與趨勢[J];電訊技術;2011年05期
8 肖漢;張祖勛;;基于GPGPU的并行影像匹配算法[J];測繪學報;2010年01期
9 鄒巖;楊志義;張凱龍;;CUDA并行程序的內(nèi)存訪問優(yōu)化技術研究[J];計算機測量與控制;2009年12期
10 王艷;何憑宗;;基于VC++的Google Earth KML地標文件的自動生成及應用[J];北京測繪;2009年02期
相關博士學位論文 前4條
1 謝非;北斗軟件接收機及慣性/衛(wèi)星超緊組合導航關鍵技術研究[D];南京航空航天大學;2014年
2 唐滔;面向CPU-GPU異構并行系統(tǒng)的編程模型與編譯優(yōu)化關鍵技術研究[D];國防科學技術大學;2012年
3 祖秉法;“北斗二號”民用軟件接收機關鍵技術研究[D];哈爾濱工程大學;2010年
4 丁繼成;弱信號條件下GPS接收機關鍵技術研究[D];哈爾濱工程大學;2009年
相關碩士學位論文 前10條
1 周偉;嵌入式實時北斗接收機軟件研究與實現(xiàn)[D];西安電子科技大學;2014年
2 竇爽;北斗信號的捕獲跟蹤算法研究[D];西安電子科技大學;2014年
3 武昶;基于GPU的GPS軟件接收機設計與實現(xiàn)[D];北京理工大學;2014年
4 董俊杰;基于Matlab的北斗二代B1頻點軟件接收機研究與實現(xiàn)[D];長安大學;2014年
5 鄒力涵;北斗二代軟件接收機關鍵技術研究[D];西安電子科技大學;2014年
6 羅正平;北斗二號民用軟件接收機的算法研究與仿真[D];電子科技大學;2012年
7 陳振宇;基于BOC調(diào)制的導航信號精密模擬方法研究[D];國防科學技術大學;2011年
8 辛富國;GNSS軟件接收機捕獲與跟蹤技術研究[D];西安電子科技大學;2011年
9 徐敏;實時GPS軟件接收機研究與實現(xiàn)[D];上海交通大學;2007年
10 張會鎖;GPS接收機軟件處理方法[D];西安電子科技大學;2000年
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