Browse > Article

A Gradient Method Based Near-Field Range Estimation Technique Robust to Direction-of-Arrival Error  

Kim, Joon-Doo (Yonsei University)
Cho, Chom-Gun (Agency of Defence Development)
Lee, Chung-Yong (Yonsei University)
Publication Information
Abstract
In this paper, we propose a near-field range estimation method for a uniform linear array that can calibrate bearing estimation error which give a bad influence on a range estimation process. When a range is fixed, the bearing error is calibrated to maximize the beamformer output by the proposed algorithm based on the gradient method. Simulation results show that the proposed algorithm can compensate the bearing error which is less than the mainlobe beamwidth so that reduce the range estimation error as similar as the case of no bearing error.
Keywords
Near-field; Focused beamforming; Range estimation; DoA estimation error; Self-calibration; Gradient method;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 F. Vignon, and M. R. Burcher, "Capon beamfoming in medical ultrasound imaging with focused beams," IEEE Trans. on Ultrasound, Ferroelectrics and Frequency Control, vol. 55, no. 3, pp. 619-628, Mar. 2008.   DOI
2 V. Murino, and A. Trucco, "A confidence-based approach to enhancing underwater acoustic image formation," IEEE Trans. on Image Processing, vol. 8, no. 2, pp. 270-285, Feb. -1999.   DOI   ScienceOn
3 W. Zhi, and M. Y. Chia, "Near-field localization via symmetric subarrays," IEEE Signal Processing Letters, vol. 14, no. 6, Jun. 2007.
4 L. C. Godara, "Application of antenna arrays to mobile communications, part II: Beam-forming and direction-of-arrival consideration," Proceedings of the IEEE, vol. 85, no. 8, pp. 1195-1245, Aug. 1997.   DOI   ScienceOn
5 Richard O. Nielson, Sonar signal processing, Artech house, 1991.
6 김준두, 노훈동, 조점군, 오원천, 이충용, "등간격 선형 배열을 이용한 근거리 거리 추정에서 입사각 추정 오차의 영향," ADD40주년종합학술대회, 대전, 2010년 8월.
7 D. Yang, J. Shi, and B. Liu, "DoA Estimation for the Near-field Correlated Sources with Interpolated Array Technique," IEEE ICIEA, 2009.
8 J. Lee, Y. Chen, and C. Yeh, "A Covariance Approximation Method for Near-Field Direction-Finding Using a Uniform Linear Array," IEEE Trans. Signal Processing, vol. 43, May 1995.
9 J. Lee, and C. Tung, "Estimating the Bearings of Near-Field Cyclostationary Signals," IEEE Trans. Signal Processing, vol. 50, Jan. 2002.
10 H. He, and Y. Wang, "Near-Field Source Localization by Using Focusing Technique," EURASIP Journal on Advances in Signal Processing, 2008.
11 J. Li, P. Stoica, and Z. Wang, "On Robust Capon Beamforming and Diagonal Loading," IEEE Trans. on Signal Processing, vol. 51, no. 7, pp. 1702-1715, Jul. 2003.   DOI   ScienceOn
12 W. Ser, H. Chen, and Z. L. Yu, "Self-Calibration-Based Robust Near-Field Adaptive Beamforming for Microphone Arrays," IEEE Trans. on Circuits and Systems, vol. 54, no. 3, pp. 267-271, Mar. 2007.   DOI
13 Y. R. Zheng, R. A. Goubran, and M. El-Tanany, "Robust near-field adaptive beamforming with distance discrimination," IEEE Trans. on Speech and Audio Processing, vol. 12, no. 5, pp. 478-488, Sep. 2004.   DOI   ScienceOn
14 최양호, "조향벡터 에러에 강인한 효과적인 Capon빔 형성기법," 대한전자공학회 전자공학회논문지-SP, 제 48권 SP편 제 5호, pp 115-122, Sep. 2011.