INFORMATION CHANGE THE WORLD

International Journal of Computer Network and Information Security(IJCNIS)

ISSN: 2074-9090 (Print), ISSN: 2074-9104 (Online)

Published By: MECS Press

IJCNIS Vol.2, No.2, Dec. 2010

Study of 2D DOA Estimation for Uniform Circular Array in Wireless Location System

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Author(s)

Ping TAN,Pian WANG,Ye LUO,Yufeng ZHANG,Hong MA

Index Terms

Direction of Arrival (DOA), antenna array, Uniform Circular Array (UCA), correlated signals, MUSIC, array calibration

Abstract

In this paper, the use of a uniform circular antenna arrays (UCA) for high resolution of two dimensional (2D) direction of arrivals (DOAs) estimation in wireless location system is investigated. Performance of 2D DOA estimation based on the real-valued unitary transformation MUSIC algorithm for UCA is presented, especially focusing on DOA estimation of multiple correlated signals. The determination of the number of incident signals on an antenna array is addressed in the condition of colored noise and coherent signal sources. Selected method for estimating the number of these sources is formulated based on the modified eigenvectors of the covariance matrix of the received signal at the antenna array. The calibration procedure is also presented for UCA especially. Simulation results are presented to confirm the performance analysis of algorithm, then the validations of Unitary Transformation MUSIC algorithm are performed based on the measurement data in a wireless location system.

Cite This Paper

Ping TAN,Pian WANG,Ye LUO,Yufeng ZHANG,Hong MA, "Study of 2D DOA Estimation for Uniform Circular Array in Wireless Location System", IJCNIS, vol.2, no.2, pp.54-60, 2010.

Reference

[1]A. Pages-Zzamora, J. Vidal, “Evaluation of the improvement in the position estimate accuracy of UMTS mobiles with hybrid position techniques”, in IEEE VTC 2002,vol.4, pp, 1631-1635, 2002

[2]Nikos Deligiannis, Spiros Louvros, “Hybrid TOA-AOA location techniques in GSM Network”, Wireless Pers Commun. 2010, Vol.54, pages:321-348

[3]H.KRIM and M. VIBERG, “Two decades of array signal processing research : the parametric approach”, IEEE Signal processing Mag., vol.13, no.4, pp.67-94, 1996

[4]R.O. Schimidt, Multiple emitter location and signal parameter estimation, IEEE Trans. Antenna Propagation, vol. 34, No.3: 276-280, March 1986

[5]Yufeng Zhang, Zhongfu Ye, Chao Liu, “An efficient DOA estimation method in multipath environment”, Signal Processing 90 (2010): 707-713

[6]Kim, M. (2004), "Hardware implementation of signal processing in smart antenna systems for high speed wireless communication", Department of Electrical and Computer Engineering, Yokohama National University, Yokohama, PhD thesis.

[7]Kapil R. Dandekar, Hao Ling and Guanghan Xu, “Smart antenna array calibration procedure including amplitude and phase mismatch and mutual coupling effects”, 2000 IEEE International Conference on Personal wireless communications, 2000, Dec. 17-20, pp. 293-295

[8]Y. Chen, A. Chang, and H. Lee, “Array Calibration Methods for Sensor Position and Pointing Errors,” Microwave and Optical Technology Letters, vol. 26, pp. 132-137, 2000.

[9]R. Ertel, Z. Hu, and J. Reed, “Antenna Array Hardware Amplitude and Phase Compensation Using Baseband Antenna Array Outputs,” 1999 IEEE Vehicular Technology Conference Proceedings, vol. 3, pp. 1759-1763, 1999.

[10]K. Huarng and C. Yeh, “A unitary transformation method for angles of arrival estimation”, IEEE Tran. Acoustic, Speech, Signal Processing, vol. 39. No.4. pp.975-977, April. 1991.

[11]M. Wax, T. Kailath. Detection of signals by information theoretic criteria. IEEE Trans. on Acoustics, Speech and Signal Processing,1985, 33(2): 387–392.

[12]W. G. Chen, K. M. Wong, J. P. Reilly. Detection of the number of signals: a predicted eigen-threshold approach. IEEE Trans.on Signal Processing, 1991, 39(5): 1088–1098.