Results 171 to 180 of about 2,110 (193)

Robust adaptive beamforming for broadband arrays

Circuits Systems and Signal Processing, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, Ming, Er, M. H.
openaire   +2 more sources

A fast and robust adaptive beamformer

2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559), 2002
Based on a unitary transformation, improved adaptive beamforming via orthogonal projection is proposed. The new algorithm firstly transforms a complex-valued covariance matrix into a real-valued matrix by means of a unitary transformation, then eigen-decomposes the transformed matrix for adaptive beamforming.
null Luo Yongjian, null Yu Genmiao, null Zhang Shouhong   +2 more
openaire   +1 more source

Robust adaptive beamforming under quadratic constraint

2010 2nd International Conference on Signal Processing Systems, 2010
In this paper, a adaptive weighted computation algorithm based on quadratic constraint 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).
Weihai Zhong, Qun Wan, Zhijiang Shang
openaire   +1 more source

Robust Adaptive Beamforming with Sidelobe Controlled

Proceedings of the 9th International Conference on Signal Processing Systems, 2017
High sidelobe level and model mismatches, such as general steering vector (SV) mismatches, are two major disadvantages of the minimum variance distortionless response (MVDR) beamforming. To suppress the sidelobe for interference nulling when encountering a mismatch problem, we propose a novel robust adaptive beamforming (RAB) technique with controlled ...
Peng Li, Ying Chen, Renhong Xie, Tianle Zhang, Xiaoqi Yuan, Yibin Rui, Shanhong Guo   +6 more
openaire   +1 more source

Adaptive and Robust Beamforming

2014
Abstract 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.
openaire   +1 more source

Robust adaptive beamforming using convex optimization

2017 IEEE 30th Canadian Conference on Electrical and Computer Engineering (CCECE), 2017
This paper compares the performance of various beamforming techniques using convex optimization. A new robust beamforming technique is formulated, and its performance is compared with the diagonal loading, robust SOCP techniques and the standard sample matrix inversion technique in different scenarios. The robustness of the proposed technique to errors
Ahmad Ali Khan, Zahid Ali
openaire   +1 more source

Adaptive wideband beamforming with robustness against presteering errors

Fourth IEEE Workshop on Sensor Array and Multichannel Processing, 2006., 2006
We develop a wideband adaptive beamformer with an improved robustness against presteering errors. The proposed beamformer employs the presteered broadband array processor and models the uncertainty in the array manifold as norm-bounded phase errors at the outputs of the presteering delay filters.
A. El-Keyi, T. Kirubarajan, A.B. Gershman   +2 more
openaire   +1 more source

Robust Adaptive Beamforming Based on Conjugate Gradient Algorithms

IEEE Transactions on Signal Processing, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ming Zhang, Anxue Zhang, Qingqing Yang
openaire   +2 more sources

Robust adaptive beamforming based on propagator method and Eigenspace Beamformer

CSQRWC 2012, 2012
A novel algorithm based on propagator method (PM) and Eigenspace Beamformer (ESB) for robust adaptive beamforming is presented. It has robust characteristics under the conditions of finite samples, desired signal point error and high SNR environment.
null Yu Pengcheng, null Yang Peng, null Yan Fei   +2 more
openaire   +1 more source

Robustness of an Adaptive Beamforming Method for Hearing Aids

Acta Oto-Laryngologica, 1990
We describe the results of computer simulations of a multimicrophone adaptive-beamforming system as a noise reduction device for hearing aids. Of particular concern was the system's sensitivity to violations of the underlying assumption that the target signal is identical at the microphones. Two-and four-microphone versions of the system were tested in
P M, Peterson, S M, Wei, W M, Rabinowitz, P M, Zurek   +3 more
openaire   +3 more sources