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Proceedings of 2009 International Workshop on Information Security and Application (IWISA 2009)

Qingdao, China, November 21-22, 2009

Editors: Feng Gao and Xijun Zhu

AP Catalog Number: AP-PROC-CS-09CN004

ISBN: 978-952-5726-06-0

Page(s): 349-352

Fast Active Calibration for Uniform Linear Array with Amplitude and Phase Errors

††††††† Zeyang Dai and Yuming Du

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This paper presents a new active calibration algorithm to calibrate uniform linear array with amplitude and phase errors by placing an auxiliary signal known with energy and azimuth in the far-field. This algorithm only needs some easy disposal of the signal covariance matrix to estimate the amplitude-phase errors without matrix eigendecomposition as the traditional active-calibration algorithm does. Itís greatly reduces the computation. When the array is calibrated, the paper apply one-dimension noise subspace algorithm to estimate the signal DOA. This algorithm can be applied to electronic countermeasure. Simulation results show that the algorithm can effectively estimate the array amplitude-phase errors, and it is robust.

Index Terms

electronic countermeasure, array signal processing, active calibration, uniform linear array, amplitude and phase errors, DOA estimation

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