Results 21 to 30 of about 14,022 (197)
Low-Complexity Robust Capon Beamforming Based on Reduced-Rank Technique
Journal of Electrical and Computer Engineering, 2015 Existing robust Capon beamformers achieve robustness against steering vector errors at a high cost in terms of computational complexity. Computationally efficient robust Capon beamforming approach based on the reduced-rank technique is proposed in this ...
Zaifang Xi +4 more
doaj +1 more source
IEEE Access, 2019 Reconstructing the interference-plus-noise covariance matrix instead of searching for the optimal diagonal loading factor for the sample covariance matrix is a good method for calculating the adaptive beamforming coefficients.
Yuguan Hou +5 more
doaj +1 more source
Low-complexity smart antenna methods for third-generation W-CDMA systems [PDF]
, 2000 There is still an open debate within the research community regarding the likely performance enhancement of smart antennas versus their complexity for commercial wireless applications.
Athanasiadou, GE +2 more
core +2 more sources
Sidelobe Suppression for Robust Beamformer via The Mixed Norm Constraint [PDF]
, 2011 Applying a sparse constraint on the beam pattern has been suggested to suppress the sidelobe of the minimum variance distortionless response (MVDR) beamformer recently.
Liu, Yipeng, Wan, Qun
core +1 more source
Deep Long Short-Term Memory Adaptive Beamforming Networks For Multichannel Robust Speech Recognition
, 2017 Far-field speech recognition in noisy and reverberant conditions remains a challenging problem despite recent deep learning breakthroughs. This problem is commonly addressed by acquiring a speech signal from multiple microphones and performing ...
Erdogan, Hakan +3 more
core +1 more source
Fast and robust adaptive beamforming method based on complex-valued RBF neural network
The 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 +1 more source
Robust and Efficient Adaptive Beamforming Using Nested Subarray Principles
IEEE 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 +1 more source
Steering vector errors and diagonal loading [PDF]
, 2004 Diagonal loading is one of the most widely used and effective methods to improve robustness of adaptive beamformers. In this paper, we consider its application to the case of steering vector errors, i.e.
Besson, Olivier, Vincent, François
core +1 more source
New convex approaches to general MVDR robust adaptive beamforming problems
Electronics Letters, 2023 Consider general minimum variance distortionless response (MVDR) robust adaptive beamforming problems based on the optimal estimation for both the desired signal steering vector and the interference‐plus‐noise covariance (INC) matrix.
Yao Zhao +5 more
doaj +1 more source
DronesThis paper investigates the use of adaptive beamforming algorithms for communication systems and sensing networks using motion-dynamic distributed random arrays. These distributed arrays include swarms of unmanned aerial vehicles (UAVs) and are formed by
Rio King +3 more
doaj +1 more source