Performance of the TSUNAMI (II) macrocellular field trial system using a dynamic interference source [PDF]
, 1999 The TSUNAMI (II) project has been an investigation into the application of adaptive antenna technology for use in future generation mobile communications systems.
Beach, MA +3 more
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Fast Wideband Beamforming Using Convolutional Neural Network
Remote Sensing, 2023 With the wideband beamforming approaches, the synthetic aperture radar (SAR) could achieve high azimuth resolution and wide swath. However, the performance of conventional adaptive wideband time-domain beamforming is severely affected as the received ...
Xun Wu +4 more
doaj +1 more source
Robust adaptive beamforming based on zone orthogonal constraint and steering vector estimation [PDF]
JASA Express Letters, 2023 This Letter solves steering vector estimation under mismatch for adaptive beamforming. The proposed beamformer implements a stepwise estimation of steering vector, and zone orthogonal constraint is added first based on adaptive constraint framework from ...
Kun Guo +4 more
doaj +1 more source
Robust adaptive beamforming using a Bayesian steering vector error model [PDF]
, 2013 We propose a Bayesian approach to robust adaptive beamforming which entails considering the steering vector of interest as a random variable with some prior distribution.
Besson, Olivier, Bidon, Stéphanie
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Low Complexity Robust Adaptive Beamformer Based On Parallel RLMS and Kalman RLMS
European Signal Processing Conference, 2019 To ease spectral congestion and enhance frequency reuse, researchers are targeting smart antenna systems using spatial multiplexing and adaptive signal processing techniques.
G. Akkad +5 more
semanticscholar +1 more source
Adaptive Beamforming With Software-Defined-Radio Arrays
IEEE Access, 2022 Digital beamforming is the holy grail of antenna array technologies, however implementing digital beamforming into practical antenna arrays has been slow due to hardware complexity and cost.
Daniel Christopher Gaydos +2 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
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Performance analysis of beamformers using generalized loading of the covariance matrix in the presence of random steering vector errors [PDF]
, 2005 Robust adaptive beamforming is a key issue in array applications where there exist uncertainties about the steering vector of interest. Diagonal loading is one of the most popular techniques to improve robustness.
Besson, Olivier, Vincent, François
core +1 more source
Robust Quaternion-valued Wideband Adaptive Beamforming
Leida 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
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Iterative turbo beamforming for OFDM based hybrid terrestrial-satellite mobile system [PDF]
, 2012 In the context of orthogonal frequency division multiplexing (OFDM)-based systems, pilot-based beamforming (BF) exhibits a high degree of sensitivity to the pilot sub-carriers.
Evans, B.G., Imran, M.A., Khan, A.H.
core +1 more source