Robust adaptive beamforming based on zone orthogonal constraint and steering vector estimation [PDF]
JASA Express Letters, 2023 This Letter solves steering vector estimation under mismatch for adaptive beamforming. The proposed beamformer implements a stepwise estimation of steering vector, and zone orthogonal constraint is added first based on adaptive constraint framework from ...
Kun Guo +4 more
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Robust Adaptive Beamforming Algorithm Based on Improved Generalized Linear Combination [PDF]
SensorsConventional adaptive beamforming algorithms often suffer from significant performance degradation when steering vector mismatches and covariance matrix estimation errors occur.
Zhiqi Gao +5 more
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DOA estimation using a broadband steering vector [PDF]
OCEANS 2010 MTS/IEEE SEATTLE, 2010 The steering vector has traditionally been useful only for narrowband signals because it is based on a specific wavelength. It is possible to construct a more general steering vector that is based on the sample period. This allows a variety of array processing techniques to be used fro broadband signals.
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Matched steering vector searching based direction-of-arrival estimation using acoustic vector sensor array [PDF]
EURASIP Journal on Wireless Communications and Networking, 2019 The acoustic vector sensor (AVS) array is a powerful tool for underwater target’s direction-of-arrival (DOA) estimation without any bearing ambiguities.
Yu Ao, Ling Wang, Jianwei Wan, Ke Xu
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A Bayesian Off-Grid DOA Estimation Framework for Close-Angle Scenarios [PDF]
SensorsDirection-of-arrival (DOA) estimation is a fundamental task in array signal processing and is widely used in radar, sonar, wireless communications, and acoustic localization. Although classical methods such as MUSIC and ESPRIT can achieve high resolution
Wenchao He +4 more
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An Improved Array Steering Vector Estimation Method and Its Application in Speech Enhancement [PDF]
EURASIP Journal on Advances in Signal Processing, 2005 We propose a robust microphone array for speech enhancement and noise suppression. To overcome target signal cancellation problem of conventional beamformes caused by array imperfections or reverberation effects, the proposed method adopts arbitrary ...
Meng Hwa Er, Zhu Liang Yu
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Robust adaptive beamforming using beam‐space steering vector estimation
Electronics Letters, 2013 To solve the problem of performance degradation owing to imprecise knowledge of the array steering vector and inaccurate estimation of the sample covariance matrix, a novel algorithm based on beam‐space steering vector estimation for robust adaptive beamforming is presented.
T. Yang, T. Su, W.T. Zhu, L. Zhang
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Blind Wideband Beamforming Algorithm Based on the Uncertainty Set [PDF]
Journal of Geodesy and Geoinformation Science, 2021 Without prior knowledge, the steering vector estimation error of the desired signal will deteriorate the beamforming performance to some extent.To solve this problem, a space-time blind wideband beamforming algorithm based on the uncertainty set is ...
Chao REN,Zhengxuan ZHANG,Enyuan TU
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Large Direction-of-Arrival Mismatch Correction for Adaptive Beamforming
IEEE Access, 2022 Direction-of-arrival (DOA) mismatch can degrade the performance of adaptive beamforming algorithms. Thus, a projection method is proposed to correct this mismatch.
Lin Chang +4 more
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Off‐grid direction‐of‐arrival estimation for nested arrays via uncertainty set extraction
Electronics Letters, 2021 Here, a novel off‐grid direction‐of‐arrival (DOA) estimation algorithm for nested arrays in the context of sparse recovery is proposed. The framework of existing off‐grid approaches is to correct the on‐grid parameter with a grid mismatch variable.
Zhen Chen +3 more
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