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姓名 顏賜龍(Szu-Lung Yen) 查詢紙本館藏 畢業系所 通訊工程學系 論文名稱 智慧型天線之複合式到達方位-時間延遲估測演算法及Geo-location應用
(Smart Antenna with Joint Angle and DelayEstimation for the Geo-location)相關論文 檔案 [Endnote RIS 格式]
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摘要(中) 在這篇論文中,我們提出一個方法使用在WCDMA FDD 上鏈系統中,去複合估測使用者其每一個主要的多路徑信號到達的方位和時間延遲。
在我們使用由Zoltowski[2] 所提出的信號處理方法去估測出所謂的使用者空-頻(space-frequency)信號向量之後,我們將使用2D Unitary ESPRIT方法當作我們的估測器,而它可以提供我們封閉解以及將多路徑信號的到達方位-時間延遲(AOA-delay)自動成對的估測出。而因為我們一次只能獲得一組有效的抽樣信號資料,因此我們將使用2D平滑法(2D smoothing)去獲取更多組的抽樣信號資訊。在2D平滑法中,我們將會提出兩種方法:分別為前置-特徵分析2D平滑法(pre-eigenanalysis)以及後置-特徵分析2D平滑法(post-eigenanalysis)。
而我們也將利用此演算法所估測出的信號到達方位(AOA)資訊去對行動台做定位,本篇論文也將把此模擬結果提出來。摘要(英) In this thesis , we propose an algorithm for joint estimate of the angle of arrival (AOA) and delay of each dominant multipath for the desired user for WCDMA FDD uplink .
After we estimate the so-called desired spatio-frequency signal vector by using previously proposed processing scheme [2], we proposed 2D unitary ESPRIT algorithm as our estimator which provides closed-form as well as automatically paired AOA-delay estimates . We efficient have a single snapshot of 2D data and thus required 2D smoothing for extracting multiple snapshots . Two 2D smoothing schemes , pre-eigenanalysis and post-eigenanalysis 2D smoothing , are discussed . Simulation results show that our algorithms can accurately estimate the AOA and delay for each multipath even under “near-far” conditions .
The AOA information is useful for source localization for emergency service . The simulation results for determining the location of the mobile station with the estimated parameters are also presented .關鍵字(中) ★ 2D Unitary ESPRIT
★ 分碼多重存取
★ 耙型
★ 天線陣列關鍵字(英) ★ 2D Unitary ESPRIT
★ CDMA
★ Rake
★ Antenna Array論文目次 目 錄
第一章 緒論 01
1. 1 研究動機………………………………………………01
1. 2 論文章節簡介…………………………………………04
第二章 WCDMA FDD 上鏈系統的空-時信號模型 05
2.1 WCDMA 的參數及傳輸通道………………………………06
2.2 WCDMA FDD上鏈系統的擴展技術與調變………………11
2.3 WCDMA FDD上鏈系統基頻空-時信號模型……………20
第三章 複和式到達方位-時間延遲估測 23
3.1 2 D Unitary ESPRIT 演算法原理與應用………………24
3.2 空-頻域上的2D信號處理法……………………………34
3.3 複合式到達方位-時間延遲估測演算法…………………39
3.4 複合式到達方位-時間延遲估測演算法之應用…………46
第四章 模擬結果與討論 49
4.1 在有“近-遠”問題情形下的模擬………………………51
4.2 在有“功率控制”情形下的模擬………………………61
4.3 行動台之地理位置估測模擬……………………………70
第五章 結論 80
參考文獻 Ⅰ
附錄 Ⅲ參考文獻 參考文獻:
[1] M. D. Zoltowski, M. Haardt, and C.P Mathews, “Closed-form 2D angle estimation with rectangular arrays in element space or beam space via Unitary ESPRIT,” IEEE Trans. Signal Processing, vol 44, pp.316-328, Feb.1996
[2] M. D. Zoltowski, and J.Ramos, “Blind Adaptive Beamforming for CDMA Based PCS/Cellular,” 29th Asilomar IEEE Conf. on Signals, Systems, and Computers, pp.378-382, Nov. 1995.
[3] Y.F. Chen and M. D. Zoltowski, “Convergence Analysis and Tracking Ability of Reduced Dimension Blind Space-Time Rake Receiver for DS-CDMA, ” VTC ’98, pp.2333-2337,May 1998.
[4] Y.F. Chen and M. D. Zoltowski, “Joint Angle And Delay Estimation for DS-CDMA with Application to Reduced Dimension Space-Time Rake Receivers ” ICASSP ’ 99, pp.2933-2936
[5] Chien-Chung Yeh, Ju-Hong Lee, Yih-Min Chen, “Estimating Two-Dimensional Angle of Arrival in Coherent Source Environment” IEEE Trans. Signal Processing, VOL.37, pp.153-155, Jan.1989
[6] James J. Caffery, Jr. and Gordon L. Stuber, “Overview of Radiolocation in CDMA Cellular Systems”,IEEE communication Magazine, April 1998.
[7] Christopher Brunner, Martin Haardt, and Josef A.Nossek, “Adaptive Space-Frequency Rake Receivers for WCDMA”, IEEE International Conference on , Volume: 4 , 1999
[8] 3GPP TS 25.211: “Physical channels and mapping of transport channels onto physical channels (FDD)”.
[9] 3GPP TS 25.212:“Multiplexing and channel coding (FDD)”.
[10] 3GPP TS 25.213:“Spreading and modulation (FDD)”.
[11] Harri Holma and Antti Toskla, Both of Nokia, Finland,
“WCDMA for UMTS”
[12] Andrew J. Viterbi,“Principles of Spread Spectrum Communication”.
[13] Vijay K.Garg, PhD, PE,“IS-95 CDMA and cdma2000, Cellular/PCS Systems Implementation”.
[14] J.G Proakis,“Digital Communication”, 4th ed,McGraw-Hill, Inc.
[15] William C. Y. Lee,“Mobile Communications Design Fundamentals”. 2nd ed. John Wiley & Sons, Inc.指導教授 陳永芳(Yung-Fang Chen) 審核日期 2002-7-4 推文 plurk
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