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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
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dc.contributor.advisor | 李枝宏(Ju-Hong Lee) | |
dc.contributor.author | Chien-Lun Peng | en |
dc.contributor.author | 彭建綸 | zh_TW |
dc.date.accessioned | 2021-06-15T13:33:00Z | - |
dc.date.available | 2017-03-08 | |
dc.date.copyright | 2016-03-08 | |
dc.date.issued | 2015 | |
dc.date.submitted | 2016-02-02 | |
dc.identifier.citation | [1] P. W. Howells, 'Exploration in fix and adaptive resolution at GE and SURC,' IEEE Transactions Antennas Propagation, Vols. AP-24, pp. 575-584, Sept. 1976.
[2] S. P. Applebaum, 'Adaptive Arrays,' IEEE Transactions Antennas Propagation, pp. 585-598, Sept. 1976. [3] B. Widrow, S.D. Stearns, Adaptive Signal Processing, Englewood Cliffs: N.Y.: Prentice-Hall, 1985. [4] R. T. C. Jr, 'The Power-Inversion adaptive array: concept and performance,' IEEE Transations Aerospace and Electronic Systems, vol. 15, no. 6, pp. 803-814, Nov. 1979. [5] L. J. Griffiths, C. W. Jim, 'Alternative approach to linear constrained adaptive beamforming,' IEEE Transaction Antennas Propagation, Vols. AP-30, pp. 27-34, Jan. 1982. [6] J. -H. Lee, C. -C. Wang, K. -P. Cheng, 'Robust adaptive array beamforming under steering angle mismatch,' Signal processing, vol. 86, pp. 296-309, Feb. 2005. [7] V. N. Vapnik, Statistical Learning Theory, New York: Wiley, 1998. [8] Ignacio Santamaría, Carlos Pantaleón, Luis Vielva and Jesús Ibáñz, 'Blind equalization of constant modulus signals using support vector machines,' IEEE Trans. on Signal Processing, vol. 52, no. 6, pp. 1773-1782, June 2004. [9] C. -C. Huang, J. -H. Lee, 'Robust adaptive beamforming using a fully data-dependent loading technique,' Progress In Eletromagnetics Research B, vol. 37, pp. 307-325, 2012. [10] O. L. F. .. III, 'An algorithm for linearly constrained adaptive array processing,' Proc. IEEE, vol. 60, pp. 926-935, Aug. 1972. [11] F. Pérez, A. Navia-Vâzquez, P.L. Alarcón-Diana and A. Artes-Rodríguez, 'An IRWLS procedure for SVR,' In Proc. EUPSICO 2000, pp. 833-839, Sept. 2000. [12] 駱文城, 在非理想環境下使用支持向量機之強健式陣列波束成型技術, 國立台灣大學電機資訊學院電信工程學研究所碩士論文, 2013. [13] S. Y. Kung, C. K. Lo, R. Foka, 'A Toeplitz Approximation Approach to Coherent Source Direction Finding,' Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '86., pp. 193-196, Apr. 1986. [14] 陳逸民, 非理想環境下訊號源方位之估測, 國立台灣大學電機工程學研究所博士論文, 1992. [15] 鄭光鵬, 在非理想環境下的強健姓多重波束成型技術, 國立台灣大學電信工程學研究所碩士論文, 2003. [16] Yinman Lee and Wen -Rong Wu, 'A Robust Adaptive Generalized Sidelobe Canceller With Decision Feedback,' IEEE Trans. on Antennas and Propagation, vol. 53, no. 11, pp. 3822-2832, Nov. 2005. [17] S. HAYKIN, Adaptive Filter Theory, Third Edition ed. [18] Mati Wax and Thomas Kailath, 'Detection of Signals by Information Theoretic Criteria,' IEEE Trans. on Acoustics, speech, and signal processing, Vols. ASSP-33, no. 2, pp. 387-392, Apr. 1985. [19] 邱順建, 可適性天線陣列空間平均法的分析與改造, 國立台灣大學電機工程學研究所碩士論文, 1988. [20] 趙家慶, 在非理想環境下具有快速收斂與強健能力之波束成型技術, 國立台灣大學電信工程學研究所碩士論文, 2014. [21] C. A. Balanis, Antenna Theory Analysis and Design, New York: Wiley, 1997. [22] S. Durrani and M. E. Bialdowski, 'Effect of mutual coupling on the interference regection capabilities of linear and circular arrays in CDMA systems,' IEEE Trans. on Antennas and Propagation, vol. 52, no. 4, pp. 1130-1134, Apr. 2004. [23] T. J. Shan and T. Kailath, 'Adaptive beamforming for coherent signal and interference,' IEEE Trans. on Acoustics, Speech, and Signal Processing, vol. 38, no. 3, pp. 527-536, June 1985. [24] Wei Zhou, Demin Zhang, Yun Lin and Zheng-zhong Zhou, 'An Improved Scheme to Suppress Coherent Interference in LCMV Adaptive Array,' Communications, Circuits and Systems Proceedings, International Conference, pp. 988-992, 2006. [25] D. D. Feldman and L. J. Griffiths, 'A constraint projection approach for robust adaptive beamforming,' IEEE ICASSP, vol. 2, pp. 1381-1384, April 1991. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/51402 | - |
dc.description.abstract | 在許多的通訊應用中,可適性陣列波束成型器被廣泛的用來優化系統的輸出訊號對干擾與雜訊比(Output SINR),因其能自動抑制干擾訊號以及雜訊,並且截取欲接收訊號,可適性波束成型器只需知道欲接收訊號的入射角度即可,其他諸如波形等參數皆不是必要資訊。
本論文主要目的在於解決可適性陣列波束成型器在非理想環境中系統效能的衰落,並提出了兩種方法增強系統的強健性,第一種方法修改了傳統廣義旁波辦消除器(Generalized Sidelobe Canceller, GSC)的架構,加入了兩個雜訊阻隔矩陣,藉以降低誤差對系統造成的影響,第二種方法則擷取了幾種強健式演算法的優點,其亦降低了誤差對系統造成的影響。 另外本論文所討論到的非理想環境包含:指引向量誤差(Steering Vector Mismatch)、天線耦合效應(Mutual Coupling Effect)以及同調環境(Coherent Environment),其中指引向量誤差的部分又分為三種不同的誤差模型來描述,包含固定形式(Fixed type)、隨機形式(Random type)以及相加形式(Additive type)。 最後在模擬分析的部分,本論文分別在一維均勻線性陣列(Uniform Linear Array, ULA)以及二維均勻圓形陣列(Uniform Circular Array, UCA)上驗證演算法的效能,得出本論文提出的作法具有不錯的強健性可用於對抗非理想環境。 | zh_TW |
dc.description.abstract | In many applications of communications, adaptive array beamforming is widely used to improve the output signal to interference and noise ratio (SINR). This technique can suppress interference and noise automatically, in the meanwhile, capture the desired signal. The a priori information of beamforming is the direction of the desired signal, for example linearly constrained minimum variance beamformer (LCMV).
The main purpose of this thesis is to solve the degradation of the system performance when the system is under non-ideal environment. This thesis has proposed two robust methods used to improve system performance. First method has modified the architecture of the conventional generalized side-lobe canceller (GSC). It adds two noise block matrics to reduce the influence of mismatch. The second method is to catch the advantage from lots of algorithms, and it also reduces the influence of mismatch. Otherwise, for the non-ideal environments, this thesis discusses steering vector mismatch, mutual coupling effect and coherent environment. The part of steering vector mismatch also separates to three types of model, include: fixed type, random type and additive type. Finally, we will present the simulation results to show the performance of the former proposed methods. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T13:33:00Z (GMT). No. of bitstreams: 1 ntu-104-R02942123-1.pdf: 4548377 bytes, checksum: bc611e4e1d217a4611ffe5a5c479c41c (MD5) Previous issue date: 2015 | en |
dc.description.tableofcontents | 致謝.................................................................I
摘要................................................................II Abstract............................................................III 目錄................................................................IV 架構圖目錄.........................................................VII 第一章 緒論..........................................................1 1.1 研究背景..........................................................1 1.2 研究動機..........................................................2 1.3 論文架構..........................................................2 第二章 天線陣列數學模型與基本概念....................................3 2.1 天線架構與數學模型...............................................3 2.1.1 均勻線性天線陣列(ULA) ....................................3 2.1.2 均勻圓形天線陣列(UCA) ....................................5 2.2 線性限制最小變異(LCMV) .........................................8 2.2.1 ULA架構下的LCMV演算法...................................8 2.2.2 UCA架構下的LCMV演算法...................................9 2.3 廣義旁波辦消除器(GSC) ..........................................11 2.3.1 ULA架構下的GSC演算法....................................11 2.3.1 UCA架構下的GSC演算法....................................15 第三章 對抗指引向量誤差之強健式波束成型技術.........................23 3.1 指引向量誤差描述................................................23 3.1.1固定指引向量誤差(Fixed type) ...............................24 3.1.2隨機指引向量誤差(Random type) .............................25 3.1.3相加型隨機指引向量誤差(Additive type) .......................25 3.2 已有的解決方法..................................................26 3.2.1特徵空間投影法(ESB) ......................................27 3.2.2完全資料相依負載法(FDDL) .................................28 3.2.3支持向量機(SVM) ..........................................30 3.2.4廣義旁波瓣消除器配合回授修正(GSC-DF) .....................36 3.3 提出的作法......................................................37 3.3.1雜訊阻隔法(Noise Block) ....................................37 3.3.2 修正型訊號空間分解配合雜訊子空間投影法....................42 3.4 模擬分析........................................................48 3.5 結論...........................................................123 第四章 對抗天線交互耦合效應之強健式波束成型技術....................127 4.1交互耦合效應描述................................................127 4.2 已有的解決方法.................................................131 4.2.1特徵空間投影法(ESB) ......................................132 4.2.2完全資料相依負載法(FDDL) ................................133 4.2.3支持向量機(SVM) .........................................135 4.3 提出的作法.....................................................142 4.3.1雜訊阻隔法(Noise Block) ...................................142 4.3.2 修正型訊號空間分解配合雜訊子空間投影法...................146 4.4 模擬分析.......................................................152 4.5 結論...........................................................174 第五章 對抗欲接收訊號同調問題之強健性波束成型技術..................177 5.1同調環境描述....................................................177 5.2 已有的解決方法.................................................178 5.2.1 TAM法..................................................178 5.2.2 ITAM法...................................................179 5.2.3 空間平均法(Spatial Smoothing) ..............................180 5.3 提出的作法.....................................................181 5.3.1空間平均配合雜訊阻隔法(Proposed I) .........................181 5.3.2修正型訊號空間分解配合空間平均法(Proposed II) ..............186 5.4 模擬分析.......................................................189 5.5 結論...........................................................197 第六章 總結及未來方向..............................................199 Appendix A..........................................................200 Appendix B..........................................................202 參考文獻............................................................205 | |
dc.language.iso | zh-TW | |
dc.title | 在非理想環境中之可適性陣列波束成型技術 | zh_TW |
dc.title | Techniques for Adaptive Array Beamforming under Non-ideal Environment | en |
dc.type | Thesis | |
dc.date.schoolyear | 104-1 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 方文賢(Wen-Hsien Fang,),劉玉蓀(Yu-Sun Liu),陳巽璋(Shiunn-Jang Chern,) | |
dc.subject.keyword | 波束成型器,廣義旁波辦消除器,指引向量誤差,天線耦合效應,同調環境, | zh_TW |
dc.subject.keyword | Beamforming,Generalized side-lobe canceller (GSC),Steering vector mismatch,Mutual Coupling Effect,Coherent Environment, | en |
dc.relation.page | 207 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2016-02-02 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電信工程學研究所 | zh_TW |
顯示於系所單位: | 電信工程學研究所 |
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