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研究生:陳冠豪
研究生(外文):Kuan-Hao Chen
論文名稱:線性偶極天線陣列之互耦補償以改善訊號來向之偵測
論文名稱(外文):Coupling Compensation with Azimuthal Informationto Improve Direction-of-Arrival Estimationwith a Linear Dipole Array
指導教授:江簡富江簡富引用關係
指導教授(外文):Jean-Fu Kiang
口試委員:瞿大雄江衍偉
口試委員(外文):Tah-Hsiung ChuYean-Woei Kiang
口試日期:2014-08-14
學位類別:碩士
校院名稱:國立臺灣大學
系所名稱:電信工程學研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2014
畢業學年度:102
語文別:英文
論文頁數:30
中文關鍵詞:天線陣列互耦補償訊號來向
外文關鍵詞:Antenna arraysmutual couplingdirection-of-arrival
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本論文以互易定理為基礎,推導出線性偶極天線單元間之耦合效應並補償之,進而將補償後之訊號用於改善訊號來向偵測之準確性。此外也測試偵測多個相干或不相干之入射訊號,並與參考文獻中的其他補償耦合效應之方法比較,進一步驗證本方法之有效性及優越性。

Reciprocity theorem is applied to derive a method to compensate for the coupling effects in a
linear dipole array, hence improving the accuracy of estimating the direction-of-arrival of the
incident wave. The receiving voltages after compensation are input to the estimation of signal
parameter via rotational invariance technique (ESPRIT) for direction estimation. Different
compensation methods in the literatures have been compared to verify the effectiveness of
this method, and multiple incident waves of both uncorrelated and coherent characteristics
are simulated.

Acknowledgment i
摘要ii
Abstract iii
Table of Contents iv
List of Figures vi
1 Introduction 1
2 Signal Model 4
3 Conventional Decoupling Method 6
3.1 MoM-based Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Calibration Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Multiple Antenna Induced EMF Method . . . . . . . . . . . . . . . . . . . . 8
4 Decoupling Method with Azimuthal Information 12
5 Covariance Matrix for ESPRIT 14
6 Results and Discussions 17
7 Conclusion 27

[1] R. O. Schmidt, “Multiple emitter location and signal parameter estimation,” IEEE
Trans. Antennas Propagat., vol. 34, no. 3, pp. 276-280, Mar. 1986.
[2] R. Roy and T. Kailath, “ESPRIT - Estimation of signal parameters via rotational
invariance techniques,” IEEE Trans. Acoust. Speech Signal Process., vol. 37, pp. 984-
995, July 1989.
[3] Frank Gross, Smart Antennas for Wireless Communications, McGraw-Hill Professional,
2005.
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and direction-of-arrival considerations,” Proc. IEEE, vol. 85, no. 8, pp. 1195-
1245, Aug. 1997.
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Process., vol. 36, pp. 814-824, May 1990.
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Press, 2003.
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1983.
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[14] R. F. Harrington, Field Computation by Moment Methods, reprint, IEEE Press, 1993.
[15] S. Henault, Y. M. M. Antar, S. Rajan, R. Inkol, and S. Wang, “The multiple antenna
induced EMF method for the precise calculation of the coupling matrix in a receiving
antenna array,” Progr. Electromagn. Res. M, vol. 8, pp. 103-118, 2009.
[16] T. J. Shan, M. Wax, and T. Kailath, “On spatial smoothing for direction-of-arrival
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[17] S. U. Pillai and B. H. Kwon, “Forward/backward spatial smoothing techniques for
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1, pp. 8-15, Jan. 1989.

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