Results 1 to 10 of about 3,109,645 (230)
A unified view on beamformers for M/EEG source reconstruction
NeuroImage, 2022 Beamforming is a popular method for functional source reconstruction using magnetoencephalography (MEG) and electroencephalography (EEG) data. Beamformers, which were first proposed for MEG more than two decades ago, have since been applied in hundreds ...
Britta U. Westner +6 more
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MVDR-LSTM Distance Estimation Model Based on Diagonal Double Rectangular Array
Sensors, 2023 Deep learning algorithms have the advantages of a powerful time series prediction ability and the real-time processing of massive samples of big data. Herein, a new roller fault distance estimation method is proposed to address the problems of the simple
Xiong Zhang +4 more
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Adaptive Radial Basis Function Detector for Beamforming [PDF]
2007 IEEE International Conference on Communications, 2007 We consider nonlinear detection in rank-deficient multiple-antenna assisted beamforming systems. By exploiting the inherent symmetry of the underlying optimal Bayesian detection solution, a symmetric radial basis function (RBF) detector is proposed and two adaptive algorithms are developed for training the proposed RBF detector.
Sheng Chen 0001 +3 more
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Sensors, 2020 Near-field acoustic holography (NAH) based on equivalent source method (ESM) is an effective method for identifying sound sources. Conventional ESM focuses on relatively low frequencies and cannot provide a satisfactory solution at high frequencies.
Ming Zan +3 more
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Information flows from hippocampus to auditory cortex during replay of verbal working memory items
eLife, 2022 The maintenance of items in working memory (WM) relies on a widespread network of cortical areas and hippocampus where synchronization between electrophysiological recordings reflects functional coupling. We investigated the direction of information flow
Vasileios Dimakopoulos +4 more
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Design of a 128‐channel transceiver hardware for medical ultrasound imaging systems
IET Circuits, Devices and Systems, 2022 In this work, the design and development of a 128‐channel transceiver hardware for medical ultrasound imaging systems and research is presented. The proposed hardware solution integrates the analog front‐end (AFE) sections, high voltage transmit pulser ...
Jayaraj Kidav +3 more
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Clustering-Based Symmetric Radial Basis Function Beamforming [PDF]
IEEE Signal Processing Letters, 2007 We propose a clustering-based symmetric radial basis function (SRBF) detector for multiple-antenna assisted beamforming systems. By exploiting the inherent symmetry of the underlying optimal Bayesian detection solution, this SRBF detector is capable of realizing the optimal Bayesian performance by clustering noisy observation data using an enhanced K ...
Sheng Chen 0001 +2 more
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External ear transfer function modeling: A beamforming approach [PDF]
The Journal of the Acoustical Society of America, 1992 In this article, a beamformer is proposed as a functional model for the spatial and temporal filtering characteristics of the external ear. The output of a beamformer is a weighted combination of the data received at an array of spatially distributed sensors.
J, Chen, B D, Van Veen, K E, Hecox
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Transmit Beamforming for MIMO Dual Functional Radar-Communication With IQI
IEEE Transactions on Vehicular Technology, 2023 Multiple-input-multiple-output (MIMO) dual-functional radar communication (DFRC) provides a solution to the severe spectrum scarcity challenge. MIMO systems may be prone to the hardware impairments (HWI). Considering I/Q-imbalance (IQI), the most common type of HWI, we study the optimal transmit beamforming design for MIMO DFRC.
Junqiu Wang +2 more
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Superior Implementation of Accelerated QR Decomposition for Ultrasound Imaging
IEEE Access, 2020 In this work, a novel Minimum Variance Distortion less Response (MVDR) beamformer architecture in which the adaptive weight vector is computed based on modified Column wise Givens Rotation (CGR) is presented.
S. G. Sreejeesh +2 more
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