Results 61 to 70 of about 3,109,645 (230)

Binaural beamforming using pre-determined relative acoustic transfer functions [PDF]

2017 25th European Signal Processing Conference (EUSIPCO), 2017
Publication in the conference proceedings of EUSIPCO, Kos island, Greece ...
Andreas I. Koutrouvelis, Richard C. Hendriks, Richard Heusdens, Jesper Jensen 0001, Meng Guo 0001   +4 more
openaire   +2 more sources

Overcoming the Phase Discontinuity Problem in RIS Optimization: A Robust and Scalable Phase‐Aware Deep Regression Framework via Hybrid CNN–LSTM Architecture

Advanced Intelligent Systems, EarlyView.
The phase discontinuity problem—where the cyclic nature of phase angles causes catastrophic errors near the ±π boundary—is a fundamental obstacle in learning‐based reconfigurable intelligent surface (RIS) optimization. A phase‐aware hybrid CNN–LSTM framework resolves this by decomposing phase predictions into sine–cosine components, mapping circular ...
Seda Savaşçı Şen, Ali Çalhan, Murtaza Cicioğlu, Oğuzhan Demiryürek   +3 more
wiley   +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.
Bidon, Stéphanie, Besson, Olivier
core   +1 more source

Downlink MBER transmit beamforming design based on uplink MBER receive beamforming for rank-deficient TDD-SDMA systems

, 2010
The downlink minimum bit error rate (MBER) transmit beamforming is directly designed based on the uplink MBER receive beamforming solution for time division duplex (TDD) space-division multiple-access (SDMA) induced multiple-input multiple-output (MIMO ...
Yang, Lie-Liang, Chen, Sheng
core   +1 more source

Contextual Bandit-Based Amplifier IBO Optimization in Massive MIMO Network

IEEE Access, 2023
Massive Multiple-Input Multiple-Output (MMIMO) is one of the 5G key enablers. Though, most of the works consider MMIMO under assumptions of ideal hardware. It has been shown that Power Amplifiers (PAs) introduce nonlinear distortion while operating close
Marcin Hoffmann, Pawel Kryszkiewicz
doaj   +1 more source

MEG Beamformer-Based Reconstructions of Functional Networks in Mild Cognitive Impairment [PDF]

Frontiers in Aging Neuroscience, 2017
Subjects with mild cognitive impairment (MCI) have an increased risk of developing Alzheimer's disease (AD), and their functional brain networks are presumably already altered. To test this hypothesis, we compared magnetoencephalography (MEG) eyes-closed resting-state recordings from 29 MCI subjects and 29 healthy elderly subjects in the present ...
Maria E. López, Maria E. López, Marjolein M. A. Engels, Elisabeth C. W. van Straaten, Elisabeth C. W. van Straaten, Ricardo Bajo, María L. Delgado, María L. Delgado, Philip Scheltens, Arjan Hillebrand, Cornelis J. Stam, Fernando Maestú, Fernando Maestú, Fernando Maestú   +13 more
openaire   +5 more sources

Scanning Parametric Sediment Echosounder as Tool for Underwater Archaeological Prospection

Archaeological Prospection, EarlyView.
ABSTRACT Underwater cultural heritage 3D prospection techniques, especially for remains that are partly buried in the ground, are only very rarely available and often can only be applied with considerable technical effort. To overcome this limitation, we evaluate a methodological adaption of widely used and available single channel parametric sediment ...
Dennis Wilken, Philipp Held, Jacob Geersen, Marcel Bradtmöller, Peter Feldens, Jens Schneider v. Deimling   +5 more
wiley   +1 more source

Virtual localization of the seizure onset zone: Using non-invasive MEG virtual electrodes at stereo-EEG electrode locations in refractory epilepsy patients

NeuroImage: Clinical, 2018
In some patients with medically refractory epilepsy, EEG with intracerebrally placed electrodes (stereo-electroencephalography, SEEG) is needed to locate the seizure onset zone (SOZ) for successful epilepsy surgery.
Erika L. Juárez-Martinez, Ida A. Nissen, Sander Idema, Demetrios N. Velis, Arjan Hillebrand, Cornelis J. Stam, Elisabeth C.W. van Straaten   +6 more
doaj   +1 more source

Presurgical magnetoencephalography‐derived network control metrics distinguish successful hippocampal resection vs sparing in temporal lobe epilepsy

Epilepsia, EarlyView.
Abstract Objective Surgical decision‐making in temporal lobe epilepsy (TLE) faces a critical challenge in determining whether the hippocampus can be safely spared during anterior temporal resection, particularly when surgery involves the language‐dominant hemisphere.
Guhan Seshadri NP, Himanshu Kumar, Neha Sara John, Andreas V. Alexopoulos, Richard C. Burgess, Hiroatsu Murakami, Balu Krishnan   +6 more
wiley   +1 more source

Movable-Antenna-Aided Covert ISAC-NOMA Networks: Joint Antenna Positioning and Resource Allocation

IEEE Open Journal of the Communications Society
Integrated sensing and communication (ISAC) systems face critical security vulnerabilities when dual-functional waveforms are used for covert operations, as static antenna architectures inherently lack the spatial agility to harmonize communication ...
A. Abdelaziz Salem, Mohamed Saad, Saeed Abdallah, Mahmoud A. Albreem, Khawla A. Alnajjar, Hayssam Dahrouj, Hesham Elsawy   +6 more
doaj   +1 more source