Results 161 to 170 of about 2,110 (193)

Automatic Robust Adaptive Beamforming via Ridge Regression

2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07, 2007
In this paper we derive a class of new parameter free robust adaptive beamformers using the generalized sidelobe canceler reparameterization of the Capon beamformer. In this parameterization the minimum variance beamformer is obtained as the solution of a linear least squares problem.
Yngve Selén, Richard Abrahamsson, Peter Stoica   +2 more
openaire   +1 more source

Robust Adaptive Beamforming

2009
In this chapter, we first review the background, basic principle and structure of adaptive beamformers. Since there are many robust adaptive beamforming methods proposed in literature, for easy understanding, we organize them into two categories from the mathematical point of view: one is based on quadratic optimization with linear and nonlinear ...
Zhu Liang Yu, Meng Hwa Er, Wee Ser, Chen Huawei   +3 more
openaire   +1 more source

Robust Adaptive Beamforming

2001
This chapter presents robust adaptive beamforming techniques designed specifically for microphone array applications. The basics of adaptive beamformers are first reviewed with the Griffiths-Jim beamformer (GJBF). Its robustness problems caused by steering vector errors are then discussed with some conventionally proposed robust beamformers.
Osamu Hoshuyama, Akihiko Sugiyama
openaire   +1 more source

Robust adaptive beamforming using iterative adaptive approach

Journal of Electromagnetic Waves and Applications, 2018
The performance of traditional reconstruction-based robust adaptive beamformers may degrade when the array is not well calibrated.
Zhen Meng, Weidong Zhou
openaire   +1 more source

Robust adaptive beamforming in nested array

Signal Processing, 2015
In this communication, we consider the problem of designing robust adaptive beamformer in the newly proposed nested array, where we maintain distortionless response towards the true desired signal and suppress more interferences than the number of actual physical sensors.
Jie Yang, Guisheng Liao, Jun Li
openaire   +1 more source

Robust multiple suppression using adaptive beamforming

Geophysical Prospecting, 1998
Minimum variance unbiased (MVU) beamforming is a type of multichannel filtering which extracts coherent signals without distortion, whilst minimizing residual noise power. Adaptive beamforming estimates signal and noise characteristics as part of the extraction process.
T. Hu, R.E. White
openaire   +1 more source

Robust adaptive beamforming for MIMO radar

Signal Processing, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiang, Cong, Feng, Da-Zheng, Lv, Hui, He, Jie, Cao, Yang   +4 more
openaire   +2 more sources

Robust constrained-LMS adaptive beamforming algorithm

2004 IEEE Region 10 Conference TENCON 2004., 2004
The existing adaptive beamforming algorithms are known to degrade if some of underlying assumptions on the environment, sources, or sensor array become violated and this may cause even slight mismatches between the actual and presumed array responses to the desired signal.
null Xin Song, null Jinkuan Wang, null Han Wang   +2 more
openaire   +1 more source

Robust adaptive beamforming via target tracking

IEEE Transactions on Signal Processing, 1996
The proposed robust beamformer adaptively self-corrects and tracks desired-source location errors or variations regardless of the eigenstructure of the input correlation matrix, of the array shape and nature of the noise. It only requires an order of computations of the sensors number and performs nearly as well as MUSIC in localization.
S. Gazor, S. Affes, Y. Grenier
openaire   +1 more source

Robust Adaptive Beamforming of Volumetric Arrays

2007 Conference Record of the Forty-First Asilomar Conference on Signals, Systems and Computers, 2007
This paper considers the development of adaptive beamforming algorithms for a prototype volumetric array. Volumetric arrays are desirable in passive sonar systems because of their ability to resolve left-right ambiguity. However, adaptively beamforming volumetric arrays poses several unique challenges compared to linear arrays such as the large number ...
Ivars P. Kirsteins, Hongya Ge
openaire   +1 more source