Results 11 to 20 of about 2,110 (193)

Robust adaptive beamforming algorithm

open access: yesTongxin xuebao, 2009
The performance of least mean squares(LMS) algorithm degraded dramatically in the presence of even slight steering vector mismatches.In order to overcome the shortage,a novel robust adaptive beamforming algorithm based on the variable diagonal loading ...
SONG Xin   +3 more
doaj   +3 more sources

Distributionally Robust Adaptive Beamforming [PDF]

open access: greenIEEE Transactions on Signal Processing
As a fundamental technique in array signal processing, beamforming plays a crucial role in amplifying signals of interest (SoI) while mitigating interference plus noise (IPN). When uncertainties exist in the signal model or the data size of snapshots is limited, the performance of beamformers significantly degrades.
Shixiong Wang, Wei Dai, Geoffrey Ye Li
openaire   +3 more sources

Robust Constrained Inverse Beamforming Algorithm Based on Space Time Adaptive Processing [PDF]

open access: goldIEEE Access, 2019
The power of Beidou satellite signals is very low, so it is vulnerable to interfering sources and in the presence of jamming. Therefore, a robust constrained inverse beamforming algorithm based on space-time adaptive processing is proposed, which can not
Yanping Liao   +3 more
doaj   +2 more sources

Robust Quaternion-valued Wideband Adaptive Beamforming

open access: yesLeida xuebao, 2019
A robust quaternion-valued wideband adaptive beamformer is proposed, in which a quaternion is utilized to arrange the output of the array element. By exploiting the augmented envelope alignment technique, adopting the three involutions of quaternion, and
DUAN Xiaofei, LIU Zhiwen, XU Yougen
doaj   +2 more sources

Robust and Efficient Adaptive Beamforming Using Nested Subarray Principles

open access: goldIEEE Access, 2020
In this paper, we propose an adaptive beamforming algorithm for large uniform linear arrays (ULAs), where only a nested subarray is utilized to calculate the beamforming coefficients for the original ULA.
Zhi Zheng   +3 more
doaj   +2 more sources

Fast and robust adaptive beamforming method based on complex-valued RBF neural network

open access: goldThe Journal of Engineering, 2019
The adaptive beamforming is one of the key techniques for array signal processing. However, the matrix inversion operation in the existing methods will cost a large amount of computational complexity, which results in poor real-time processing ability ...
Yuqing Li, Xiaopeng Yang, Feifeng Liu
doaj   +2 more sources

Robust adaptive beamforming using variable loading

open access: goldFourth IEEE Workshop on Sensor Array and Multichannel Processing, 2006., 2006
It is well known that the performance of adaptive beamformers may degrade in the presence of steering errors or lack of training data. Diagonal loading of the sample covariance matrix is a popular technique applied to the minimum variance/minimum power distortionless response beamformer to increase robustness of the array system.
null Jing Gu, P.J. Wolfe
openaire   +2 more sources

Deep unfolding model‐based for hybrid robust wide band adaptive beamforming [PDF]

open access: goldIET Microwaves, Antennas & Propagation
The design of arrays capable of receiving wideband signals differs from arrays that can only receive narrowband signals. These arrays must be able to receive signals with an instant bandwidth of several GHz across the entire operating frequency, such as ...
Reza Janani, Reza Fatemi Mofrad
doaj   +2 more sources

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