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| Robust Cyclic Adaptive Beamforming under Cycle Frequency Error |
| Zhang Ai-min①②;Lin Jing①;Li Xiu-lin①② |
| ①National Lab. of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, China; ②Graduate School of Chinese Academy of Sciences, Beijing 100039, China |
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Abstract The performance of Cyclic Adaptive Beamforming （CAB） algorithm degrades severely when the estimation of the cycle frequency is not accurate. A robust CAB algorithm is proposed in this paper which overcomes the sensitivity to the Cycle Frequency Error （CFE）. Simulations show that the performance of the proposed method when applied to CFE cases is almost as good as that of the original CAB method for the case without CFE.
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Received: 25 March 2004
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2005, Vol. 27 
