Results 21 to 30 of about 2,822,972 (301)
Adaptive beamforming for photoacoustic imaging [PDF]
Optics Letters, 2008 An adaptive photoacoustic image reconstruction technique that combines coherence factor (CF) weighting and the minimum variance (MV) method is introduced. The backprojection method is widely used to reconstruct photoacoustic tomography images. Owing to the scattering of light, the quality of the photoacoustic imaging can be degraded.
Salavat R. Aglyamov +3 more
openaire +3 more sources
IET Smart Cities, Volume 4, Issue 4, Page 239-254, December 2022., 2022 Abstract This paper investigates moving networks of Unmanned Aerial Vehicles to extend connectivity and guarantee data rates in the 5G by analysing possible hovering locations based on limitations such as flight time and coverage. The authors provide analytic bounds on the requirements in terms of connectivity extension for vehicular networks served by
Dalia Popescu +2 more
wiley +1 more source
Applied Sciences, 2020 Coherent plane-wave compounding (CPWC) is widely used in medical ultrasound imaging, in which plane-waves tilted at multiple angles are used to reconstruct ultrasound images. CPWC helps to achieve a balance between frame rate and image quality.
Shuai Feng +4 more
doaj +1 more source
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
Communication, sensing, computing and energy harvesting in smart cities
IET Smart Cities, Volume 4, Issue 4, Page 265-274, December 2022., 2022 Abstract A smart city provides diverse services based on real‐time data obtained from different devices deployed in urban areas. These devices are largely battery‐powered and widely placed. Therefore, providing continuous energy to these devices and ensuring their efficient sensing and communications are critical for the wide deployment of smart cities.
Yusha Liu, Kun Yang
wiley +1 more source
Noise Adaptive Beamforming for Linear Array Photoacoustic Imaging [PDF]
IEEE Transactions on Instrumentation and Measurement, 2020 The delay-and-sum (DAS) algorithm is widely used for beamforming in linear array photoacoustic (PA) imaging systems and is characterized by fast execution.
Souradip Paul +2 more
semanticscholar +1 more source
IET Science, Measurement &Technology, Volume 17, Issue 1, Page 11-26, January 2023., 2023 Abstract Partial discharge (PD) localization is critical to ensure the safe operation of power equipment. In this paper, an optimization scheme is developed for PD positioning of external insulation equipment. The optimization scheme is based on an eight‐element cross sensor array to receive the ultrasonic signal generated by the PD, and uses the ...
Shaotong Pei +4 more
wiley +1 more source
FaSNet: Low-Latency Adaptive Beamforming for Multi-Microphone Audio Processing [PDF]
Automatic Speech Recognition & Understanding, 2019 1. ABSTRACT Beamforming has been extensively investigated for multi-channel audio processing tasks. Recently, learning-based beamforming methods, sometimes called neural beamformers, have achieved significant improvements in both signal quality (e.g ...
Yi Luo +4 more
semanticscholar +1 more source
Design and analysis of Maxwell fisheye lens based beamformer
Scientific Reports, 2021 Antenna arrays and multi-antenna systems are essential in beyond 5G wireless networks for providing wireless connectivity, especially in the context of Internet-of-Everything.
Muhammad Ali Babar Abbasi +3 more
doaj +1 more source
Flexible Robust Adaptive Beamforming Method With Null Widening
IEEE Sensors Journal, 2021 The nonstationarity of interferences and array errors may bring fatal degradation to the interference cancellation performance of an adaptive beamformer.
Ziwei Liu +3 more
semanticscholar +1 more source