Results 1 to 10 of about 97,888 (314)
Signal Waveform Estimation in the Presence of Uncertainties About the Steering Vector [PDF]
IEEE Transactions on Signal Processing, 2004 The problem of signal waveform estimation using an array of sensors where there exist uncertainties about the steering vector of interest is presented in this paper. This problem occurs in many situations, including arrays undergoing deformations, uncalibrated arrays, scattering around the source, etc.
Olivier Besson, A A Monakov
exaly +6 more sources
The Journal of Engineering, 2019 Here, the authors propose a novel robust adaptive beamforming method, which is robust to both of the covariance matrix mismatch and the steering vector estimation mismatch.
Lei Yu +3 more
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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
doaj +3 more sources
Electronics Letters, 2021 The hybrid phased multiple‐input‐multiple‐output (MIMO) radar with subarray partition can provide the transmit coherent gain of phased array and the waveform diversity of MIMO radar. The current researches mainly focus on the different subarray partition
J. Lu, J. Yang, B. Hou, F. Zhu, G. Liu
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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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The Journal of Engineering, 2019 Here, the authors propose a robust adaptive beamforming method based on desired signal steering vector estimation and interference-plus-noise covariance matrix reconstruction, so as to attenuate the influences of the desired signal steering vector ...
Junsheng Huang, Hongtao Su, Yang Yang
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A robust generalized sidelobe canceller via steering vector estimation [PDF]
EURASIP Journal on Advances in Signal Processing, 2016 In the presence of the direction of arrival (DOA) mismatch, the performance of generalized sidelobe canceller (GSC) may suffer severe degradation due to the gain loss of the desired signal in the main array and cancellation. In this paper, one effective GSC algorithm is proposed to improve the robustness against the DOA mismatch of the desired signal ...
Xu Wang +3 more
openaire +2 more sources
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
doaj +2 more sources
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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IEEE Access, 2017 Diagonal loading provides a powerful and effective way to improve the robustness of the standard Capon beamformer. Several parameter-free robust adaptive beamformers (RAB) are considered in this paper.
Yuxuan Ke +3 more
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