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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/35915

    Title: 室外手機與室內超寬頻定位系統分析與研究
    Other Titles: Study and analysis on outdoor mobile and indoor UWB positioning systems
    Authors: 羅宇強;Lo, Yu-chiang
    Contributors: 淡江大學電機工程學系碩士班
    丘建青;Chiu, Chien-ching
    Keywords: 手機定位;超寬頻定位;Ultra Wide-band;Non-Line-of-Sight;Mobile positioning;UWB positioning
    Date: 2006
    Issue Date: 2010-01-11 07:19:21 (UTC+8)
    Abstract: 在過去幾年不論是戶外的手機或是最新提出的短距離超寬頻系統,無線定位服務都成為一個很熱門的問題;在我們的無線通訊系統裏,甚多研究提供以訊號抵達的場強(SS)、訊號抵達的時間(TOA)以及訊號抵達的角度(AOA)在無線系統中作定位的技術。
    The mobile positioning service has become a hot issue over the past few years in wireless communication. The Signal strength (SS), the Angle of Arrival (AOA) and Time of Arrival (TOA) techniques have been proposed for providing location services in wireless mobile position systems.
    In this paper we present a method for the enhanced accuracy of mobile location. This method is to mix and combine AOA and TOA in wireless mobile position system and to pick out mobile locations to enhance the accuracy of location estimation. Numerical results demonstrate that the proposed location scheme gives much higher location accuracy than the method that only uses TOA or AOA location technique.
    The major technical challenge is Non-Line-of-Sight (NLOS) problems in the wireless mobile position system. In this thesis, we focus on the NLOS mitigation issue. NLOS mitigation algorithms are proposed to combat such NLOS errors based on TOA and AOA position techniques. Finally, the performance of the proposed algorithm is evaluated by computer simulations. Simulation results show that the proposed schemes are effective in decreasing NLOS errors.
    Appears in Collections:[電機工程學系暨研究所] 學位論文

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