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2022-02-16
An Efficient ADBF Algorithm Based on Keystone Transform for Wideband Array System
By
Progress In Electromagnetics Research Letters, Vol. 102, 167-175, 2022
Abstract
In this paper, an efficient wideband array adaptive beamforming (ADBF) approach based on keystone transform is presented. In order to eliminate the aperture effect of the wideband signal, the modified keystone transform is applied to remove the time delay between different array elements. Thus, the wideband array is equivalent to the narrowband array, and the orthogonal projection matrix of the target steering vector can be used to filter the desired signal in the training samples, which avoids the signal cancellation caused in the estimation of ADBF covariance matrix. Compared with theestablished algorithm of sliding window, this approach can significantly reduce the computational burden. The feasibility and effectiveness of the proposed method are validated through numerical simulations.
Citation
Yiyang Jiang Mingwei Shen Guodong Han , "An Efficient ADBF Algorithm Based on Keystone Transform for Wideband Array System," Progress In Electromagnetics Research Letters, Vol. 102, 167-175, 2022.
doi:10.2528/PIERL21112605
http://www.jpier.org/PIERL/pier.php?paper=21112605
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