Results 61 to 70 of about 14,022 (197)

Robust adaptive beamforming method based on desired signal steering vector estimation and interference-Plus-noise covariance matrix reconstruction

open access: yesThe Journal of Engineering, 2019
Here, the authors propose a robust adaptive beamforming method based on desired signal steering vector estimation and interference-plus-noise covariance matrix reconstruction, so as to attenuate the influences of the desired signal steering vector ...
Junsheng Huang, Hongtao Su, Yang Yang
doaj   +1 more source

Symbol‐Level GRAND‐Assisted Detection for Polar‐Coded Spatial Modulation in MIMO Systems

open access: yesInternational Journal of Communication Systems, Volume 39, Issue 7, 10 May 2026.
This research presents an integrated polar‐coded spatial modulation (PCSM) transceiver scheme for MIMO transmission over Rayleigh fading channels. The proposed architecture employs linear spatial signal processing for antenna and symbol estimation, followed by symbol‐level guessing random additive noise decoding (symbol‐level GRAND)–assisted detection ...
Abhilasha Gautam   +2 more
wiley   +1 more source

Multi-Step Knowledge-Aided Iterative ESPRIT for Direction Finding

open access: yes, 2018
In this work, we propose a subspace-based algorithm for DOA estimation which iteratively reduces the disturbance factors of the estimated data covariance matrix and incorporates prior knowledge which is gradually obtained on line.
de Lamare, R. C., Pinto, S. F. B.
core   +1 more source

Mapping of Physiological Signals From Wireless Battery‐Free Implants With Plane‐Wave Ultrasound Imaging

open access: yesAdvanced Materials Technologies, Volume 11, Issue 9, 6 May 2026.
Combined approach of electromagnetic (Power) and ultrasound (data harvesting) waves is proposed to address the miniaturized ultrasonic implants. Electromagnetic waves trigger the piezoelectric element to generate the acoustic pulse which is modulated by the variations in the sensor's impedance.
Anam Bhatti   +6 more
wiley   +1 more source

Review on Deep Learning‑Based Adaptive Beamforming for Array Antennas

open access: yesShuju Caiji Yu Chuli
With the increasing of array antennas and the growing complexity of anti-jamming, traditional adaptive beamforming methods often suffer from high computational complexity. Deep learning, with its powerful data-driven capabilities, offers a novel approach
XU Zheng   +3 more
doaj   +1 more source

Pyroomacoustics: A Python package for audio room simulations and array processing algorithms

open access: yes, 2017
We present pyroomacoustics, a software package aimed at the rapid development and testing of audio array processing algorithms. The content of the package can be divided into three main components: an intuitive Python object-oriented interface to quickly
Bezzam, Eric   +2 more
core   +1 more source

Liver Stiffness Characterization of OGTLKO Mouse Model of Progressive Liver Fibrosis

open access: yesJournal of Ultrasound in Medicine, Volume 45, Issue 5, Page 1069-1082, May 2026.
Objectives O‐GlcNAcylation plays a key regulatory role in hepatic physiology, and its disruption leads to fibrosis in liver‐specific OGT knockout mice (OGTLKO), making this model valuable for studying advanced metabolic dysfunction‐associated steatohepatitis (MASH).
Gilles Renault   +9 more
wiley   +1 more source

Wideband Waveform Design for Robust Target Detection

open access: yes, 2014
Future radar systems are expected to use waveforms of a high bandwidth, where the main advantage is an improved range resolution. In this paper, a technique to design robust wideband waveforms for a Multiple-Input-Single-Output system is developed.
Panahi, Ashkan   +2 more
core   +1 more source

The Detection of Transient Subduction Zone Interface Properties Using Teleseismic Data

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The physical properties of subduction zone interfaces govern the transition between stable aseismic slip, episodic slow slip events (SSEs), and large earthquakes. Ultraslow velocity layers (USVLs) along the megathrust are commonly interpreted as indicators of elevated pore‐fluid pressures that promote slow slip, but their temporal variability ...
F. Rappisi, T. J. Craig, S. Rost
wiley   +1 more source

Beamforming Techniques for Multichannel audio Signal Separation

open access: yes, 2012
Beamforming is a signal processing technique. It has been studied in many areas such as radar, sonar, seismology and wireless communications, to name but a few.
Adel, Hidri   +3 more
core   +1 more source

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