Results 281 to 290 of about 2,822,972 (301)
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Robust Quasi-Adaptive Beamforming Against Direction-of-Arrival Mismatch
IEEE Transactions on Aerospace and Electronic Systems, 2018This paper presents a novel robust quasi-adaptive beamforming (RQAB) scheme against direction-of-arrival (DOA) mismatch. Unlike existing robust adaptive beamforming (RAB) methods, the proposed approach obtains the ultimate beamformer weight vector in a ...
Xuejing Zhang +4 more
semanticscholar +1 more source
1989
Sonar (sound navigation ranging) is an apparatus that detects the presence and location of submerged objects (as a submarine) by means of sonic waves reflected back from or produced by an object.
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Sonar (sound navigation ranging) is an apparatus that detects the presence and location of submerged objects (as a submarine) by means of sonic waves reflected back from or produced by an object.
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Adaptive and Robust Beamforming
2014Abstract This chapter is dedicated to the overview of the main results in the fields of adaptive beamforming and robust adaptive beamforming. The basic principles and main approaches to adaptive and robust adaptive beamforming are explained based on the narrowband point source signal model.
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Comparison of compressive sampling beamforming to adaptive and conventional beamforming
The Journal of the Acoustical Society of America, 2012Interest in the application of compressive sampling to beamforming has increased in recent years [G.F. Edelmann and C.F. Gaumond, J. Acoust. Soc. Am. 130(4) EL232-EL237 (2011)]. This work compares the performance of a compressive sampling beamformer to conventional beamforming and to an adaptive beamforming algorithm which utilizes dominant mode ...
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A Robust Adaptive Beamforming Approach
2009 International Joint Conference on Artificial Intelligence, 2009In this paper, a new adaptive weight computation algorithm for a robust array antenna is presented to improve the shortcoming of linearly constrained adaptive beamformer’s sensitivity to the mismatch between the prescribed and actual direction of arrival (MPDOA).The adaptive array minimizes the mean output power under the direction constraint that the ...
Jianping Qian, Bangjie Ji
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Weighted Subspace-Constrained Adaptive Beamforming for Sidelobe Control
IEEE Communications Letters, 2019A weighted subspace-constrained minimum variance distortion-less response (WS-MVDR) beamformer is proposed for robustly controlling the peak sidelobe level (PSL) as well as the sidelobe shape of adaptive array pattern with stable mainlobe.
Miao Zhou +3 more
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An ASIC design for adaptive beamforming
1991 International Conference on Circuits and Systems, 2002Adaptive beamforming is based on the RLS (recursive least squares) algorithm realized by the RLS systolic array (RLSSA) proposed by McWhirter in 1983. The authors use CORDIC (CO-ordinate Rotation Digital Computer) algorithm to implement RLSSA. Only shifting and adding operations are employed to realize all the primitive array's complex procedure.
Hou Chaohuan, Sun Yungong, Hu Guorong
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A Kronecker product CLMS algorithm for adaptive beamforming
Digit. Signal Process., 2021Eduardo Vinícius Kuhn +5 more
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The PDF of adaptive beamforming weights
IEEE Transactions on Signal Processing, 1991The author derives a closed-form expression for the marginal probability density function (PDF) for the weight vector coefficients in a minimum-variance distortionless response (MVDR) adaptive beamformer, when the snapshots are independently identically distributed (IID) normal and the weights are computed via sample matrix inversion.
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Robust adaptive beamforming via subspace for interference covariance matrix reconstruction
Signal Processing, 2020Xingyu Zhu, Xu Xu, Z. Ye
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