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???org.dspace.app.webui.jsptag.ItemTag.dcfield??? | Value | Language |
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dc.contributor.advisor | 闕志達(Tzi-Dar Chiueh) | |
dc.contributor.author | I-Jui Chu | en |
dc.contributor.author | 朱怡睿 | zh_TW |
dc.date.accessioned | 2021-06-07T18:15:53Z | - |
dc.date.copyright | 2012-03-20 | |
dc.date.issued | 2012 | |
dc.date.submitted | 2012-02-15 | |
dc.identifier.citation | [1] European GNSS Agency (GSA), http://www.gsa.europa.eu.
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Jensen, A Software-Defined GPS and Galileo Receiver – A Single Frequency Approach. Boston, Mass, USA: Birkhauser Boston, 2007. [16] Science Applications International Corporation, “Navstar GPS Space Segment / Navigation User Interfaces, IS-GPS-200, Rev. E,” El Segundo, CA, June 2010. [17] Galileo Project Office, “GIOVE-A+B Navigation Signal In Space Interface Control Document (SIS ICD),” Aug 2008. [18] J. B.-Y. Tsui, Fundamentals of Global Positioning System Receivers – A Software Approach 2nd edition. New York, USA: John Wiley & Sons, Inc., 2005. [19] F. Principe, G. Bacci, F. Giannetti, and M. Luise, “Software-defined radio technologies for GNSS receivers: a tutorial approach to a simple design and implementation,” International Journal of Navigation and Observation, vol. 2011, Article ID 979815, 27 pages, 2011. [20] Mini-Circuits, http://www.minicircuits.com. [21] National Instruments, http://www.ni.com. [22] NI PXI-5661 2.7 GHz RF Vector Signal Analyzer – Digital Downconversion, http://sine.ni.com/nips/cds/view/p/lang/zht/nid/203038. [23] P. W. Ward, “GPS Receiver Search Techniques,” in Proceedings of the IEEE 1996 Position Location and Navigation Symposium, Atlanta, GA, USA, April 22-26, 1996, pp. 604-611. [24] D. Akopian, “Fast FFT based GPS satellite acquisition methods,” Radar, Sonar and Navigation, IEE Proceedings, Vol. 152, No.4, pp.277-286, August 2005. [25] E. S. Lohan, “Analytical Performance of CBOC - Modulated Galileo E1 Signal Using Sine BOC (1,1) Receiver for Mass-Market Applications,” in Proceedings of the IEEE 2010 Position Location and Navigation Symposium, Indian Wells, CA, USA, May 4-6, 2010, pp. 245-253. [26] E. D. Kaplan and C. J. Hegarty, Understanding GPS: Principles and Applications 2nd edition. Bonston, London: Artech House, 2006. [27] A. M. Kamel, “Design and testing of an intelligent GPS tracking loop for noise reduction and high dynamics applications,” in Proceedings of the 23rd International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS 2010), Portland, Oregon, Sep. 21-24, 2010, pp. 3235-3243. [28] A. Lipka and R. Niski, “The concept of the Galileo receiver,” in The International Conference on “Computer as a Tool,” Warsaw, September 12, 2007, pp. 1106–1112. [29] D.A. Vallado, Fundamentals of Astrodynamics and Application 3rd Edition. Hawthorne, CA: Microcosm Press/Springer, 2007. [30] S. Schon and O. Bielenberg, “On the capability of high sensitivity GPS for precise indoor positioning,” in IEEE Proceedings of the 5th Workshop on Positioning, Navigation and Communication 2008, Hannover, March 2008, pp. 121-127. [31] F. K. Brunner, H. Hartinger, and L. Troyer, “GPS signal diffraction modelling: the stochastic SIGMA-Δ model,” Journal of Geodesy, vol. 73, pp. 259-267, 1999. [32] V. Behar, Ch. Kabakchiev, G. Gaydadjiev, G. Kuzmanov, and P. Ganchosov, “Parameter optimization of the adaptive MVDR QR-based beamformer for jamming and multipath suppression in GPS/GLONASS receivers,” in Proceedings of the 16th International Conference on Intergrated Navigation Systems ICINS'09, Saint-Petersburg, 25-27 May, 2009, pp. 325-334. [33] J. Malmstrom, “Robust navigation with GPS/INS and adaptive beamforming,” Scientific report of Swedish Defence Research Agency, April 2003. [34] R. Mallipeddi, J. P. Lie, S. G. Razul, P. N. Suganthan, and C. M. S. See, “Robust adaptive beamforming based on covariance matrix reconstruction for look direction mismatch,” Progress In Electromagnetics Research Letters, Vol. 25, pp. 37-46, 2011. [35] Google Earth – Offers maps and satellite images, http://earth.google.com. [36] S. H. Zhao, D. Akos., “An open source GPS/GNSS vector tracking loop - implementation, filter tuning, and results,” in Proceedings of the 2011 International Technical Meeting of The Institute of Navigation (ION ITM 2011), San Diego, CA, Jan. 2011, pp. 980 - 991. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/16459 | - |
dc.description.abstract | 近幾年來,由於行動電子產品的普遍性與便利性越來越高,一般民眾對於其附加功能的要求亦隨之提升,其中”衛星導航定位服務”已幾乎成為必備要素之一。因此,無論是車用、手持式或是智慧型手機、隨身電腦等的導航定位系統,都希望可以提供高準確度、高穩定性、高效率的衛星定位服務,以滿足所有消費者的共同需求與期待。目前由美國發展的全球定位系統(GPS)最為成熟,免費提供任何人在任何位置皆可使用此服務,而歐盟為了避免衛星導航市場被美國壟斷,也正積極建立其獨立的衛星導航系統,稱之為伽利略(Galileo)系統。
本論文兼併目前正在建立的Galileo衛星系統和發展已成熟的GPS衛星系統之優點,利用其彼此相容的特性,建立一雙衛星軟體基頻接收機,增加使用者定位的準確度和整體效能。而相容的雙衛星系統也意謂著接收機將同時取得並處理兩系統的訊號,但必須注意個別衛星系統間不能互相干擾,以免影響到另一系統的訊號處理。因此,本研究將完整實現GPS和Galileo衛星訊號的處理過程,並克服雙衛星系統同時處理將面對到的各種問題,以提供接收機更高準確度的定位服務。另外,為了解決訊號在傳送過程中容易受到外界干擾使接收機收到的訊號相當微弱,本論文利用雙天線波束成型技術提升訊號之訊雜比,使接收機可收到更多穩定的衛星訊號。最後,本論文將以實際錄製的衛星訊號展現此雙衛星軟體基頻接收機之成果。 | zh_TW |
dc.description.abstract | In recent years, due to the popularity and convenience of mobile electronic products, the requirements of additional features increase, especially in “satellite navigation service.” Therefore, in order to meet the demands and expectations of all users, the navigation system is expected to provide high accuracy, high stability, and high efficiency in automobile electronics, handheld devices, smart phones, and portable computers. Currently, the most well-established navigation satellite system is Global Positioning System (GPS) which is developed by the U.S. and free to anyone everywhere. For the purpose of avoiding the monopoly of the U.S. satellite navigation market, the European Union is building its own independent satellite navigation system called Galileo system.
Combining the advantages of Galileo and GPS satellite systems and using the interoperability between these systems, the dual satellite software baseband receiver is proposed to increase the positioning accuracy and performance. These two satellite systems are interoperable with each other, so that the receiver could receive and process these two signals simultaneously. Besides, the mutual interference has to be carefully avoided. Therefore, this research completely implements the GPS and Galileo satellite signal processing and overcomes the problem of the two satellite systems to provide higher accuracy positioning services. In addition, the signal susceptible to interference during transmission makes the receiver receive very weak signal. For this problem, the slolution is to use dual-antenna beamforming techniques which enhance the signal SNR, so the receiver would receive more robust satellite signals. Finally, the recording of the actual satellite signals are used to verify the receiver. | en |
dc.description.provenance | Made available in DSpace on 2021-06-07T18:15:53Z (GMT). No. of bitstreams: 1 ntu-101-R98943032-1.pdf: 4626505 bytes, checksum: ac17120b6e62352199b8e092282d0a13 (MD5) Previous issue date: 2012 | en |
dc.description.tableofcontents | 第一章 緒論 1
1.1 研究動機 1 1.2 全球導航衛星系統介紹 2 1.2.1 全球定位系統 (GPS) 3 1.2.2 伽利略定位系統 (Galileo) 4 1.3 論文組織 6 第二章 GPS/Galileo衛星訊號和導航資料 7 2.1 衛星訊號 7 2.1.1 GPS衛星訊號 8 2.1.2 Galileo衛星訊號 13 2.2 都普勒效應 20 2.2.1 GPS衛星訊號都普勒頻率偏移 20 2.2.2 Galileo衛星訊號都普勒頻率偏移 22 2.3 衛星導航資料內容 23 2.3.1 GPS導航資料內容 23 2.3.2 Galileo導航資料內容 26 第三章 GPS/Galileo基頻軟體接收機 29 3.1 硬體架構 30 3.1.1 天線 31 3.1.2 射頻前端電路 31 3.2 GPS/Galileo基頻軟體接收機架構 33 3.2.1 衛星訊號擷取 34 3.2.2 衛星訊號追蹤 35 3.2.3 導航資料處理 35 第四章 GPS/Galileo基頻訊號處理 37 4.1 衛星訊號擷取 37 4.1.1 GPS衛星訊號擷取 37 4.1.2 Galileo衛星訊號擷取 43 4.1.3 實際訊號擷取結果 45 4.2 衛星訊號追蹤 48 4.2.1 載波頻率追蹤 48 4.2.2 偽隨機雜訊碼追蹤 53 4.2.3 實際訊號追蹤結果 57 第五章 GPS/Galileo導航資料處理 61 5.1 GPS導航資料處理 61 5.1.1 子訊框邊界搜尋 61 5.1.2 同位元檢查 62 5.2 Galileo導航資料處理 63 5.2.1 頁邊界搜尋 63 5.2.2 反區塊交錯 65 5.2.3 腓特比解碼 66 5.2.4 循環冗餘檢查 68 5.3 接收機位置計算 69 5.3.1 偽距離估算 69 5.3.2 衛星方位計算 69 5.3.3 計算接收機位置 77 5.4 接收機定位結果 82 第六章 GPS/Galileo雙天線可適性波束成型設計 89 6.1 天線陣列配置 90 6.2 可適性波束成型方法 93 6.3 實際訊號結果 95 第七章 結論與未來展望 99 參考文獻 101 | |
dc.language.iso | zh-TW | |
dc.title | GPS和Galileo雙衛星軟體接收機之可適性波束成型設計 | zh_TW |
dc.title | Design of a Software GPS-Galileo Receiver with Adaptive Beamforming | en |
dc.type | Thesis | |
dc.date.schoolyear | 100-1 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 曹恆偉(Hen-Wai Tsao),蔡佩芸(Pei-Yun Tsai) | |
dc.subject.keyword | 全球衛星定位系統,伽利略衛星定位系統,軟體接收機,波束成型, | zh_TW |
dc.subject.keyword | GPS,Galileo,software receiver,beamforming, | en |
dc.relation.page | 104 | |
dc.rights.note | 未授權 | |
dc.date.accepted | 2012-02-15 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電子工程學研究所 | zh_TW |
Appears in Collections: | 電子工程學研究所 |
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