Results 11 to 20 of about 3,109,645 (230)

Complex-Valued Symmetric Radial Basis Function Network for Beamforming [PDF]

open access: yes, 2009
The complex-valued radial basis function (RBF) network proposed by Chen et al. (1994) has found many applications for processing complex-valued signals, in particular, for communication channel equalization and signal detection. This complex-valued RBF network, like many other existing RBF modeling methods, constitutes a black-box approach that seeks ...
Sheng Chen, Chen, Sheng
openaire   +2 more sources

WDM-enabled multi-core parallel programmable photonic signal processor [PDF]

open access: yesNature Communications
As a frontier in integrated photonics, 2D waveguide mesh-based programmable processors offer compact, reconfigurable platforms. However, conventional Mach–Zehnder interferometer (MZI)-based designs rely on wavelength-agnostic routing, which monopolizes ...
Zihang Yang   +9 more
doaj   +2 more sources

Joint beamforming and transmit power control for maximizing uplink communication rate of active IRS-assisted ISAC system [PDF]

open access: yesScientific Reports
Existing studies related to active intelligent reflecting surface (IRS)-assisted integrated sensing and communication (ISAC) systems generally focus on sensing performance optimization in downlink communication scenarios, and there lacks research that ...
Jihong Wang, Siyu Lu
doaj   +2 more sources

Design of far field beamforming problem by window function [PDF]

open access: yesIOP Conference Series: Materials Science and Engineering, 2018
Abstract The design of the broadband beam former problem is to find the coefficients vector for all FIR filters such that output fits to a given target spatial directivity pattern in a specified domain. This problem is always very complicated. In this paper, we propose a fast window function method to solve this problem.
Dan Li, Xiaofen Tan, Zhiguo Feng
openaire   +1 more source

Precision planter monitoring system based on mobile communication network

open access: yesIET Networks, EarlyView., 2022
Abstract Sowing is an important link in agricultural production and the basis for ensuring high yields and bumper harvests. Agriculture requires precision plows with good performance and stable work. However, the seeding process is in a completely closed state, and the operator relies mainly on experience to judge the operating state and performance of
Bing Li, Jiyun Li
wiley   +1 more source

A Compressed Equivalent Source Method Based on Equivalent Redundant Dictionary for Sound Field Reconstruction

open access: yesApplied Sciences, 2019
The equivalent source method (ESM) based on compressive sensing (CS) requires that the source has a sparse or approximately sparse representation in a suitable basis or dictionary.
Yansong He   +3 more
doaj   +1 more source

Cognitive and clinical dysfunction, altered MEG resting-state networks and thalamic atrophy in multiple sclerosis. [PDF]

open access: yesPLoS ONE, 2013
The relation between pathological findings and clinical and cognitive decline in Multiple Sclerosis remains unclear. Here, we tested the hypothesis that altered functional connectivity could provide a missing link between structural findings, such as ...
Prejaas Tewarie   +7 more
doaj   +1 more source

Tuning of the functional beamforming resolution for wind tunnel measurements [PDF]

open access: yes, 2022
Conventional Frequency Domain Beamforming (CB) is characterised by the frequency dependency of the mainlobe width and by the presence of sidelobes that limit its dynamic range.
G. Battista   +2 more
core  

MEG can map short and long-term changes in brain activity following deep brain stimulation for chronic pain. [PDF]

open access: yesPLoS ONE, 2012
Deep brain stimulation (DBS) has been shown to be clinically effective for some forms of treatment-resistant chronic pain, but the precise mechanisms of action are not well understood.
Hamid R Mohseni   +9 more
doaj   +1 more source

Radio Over Fiber Downlink Design for Spatial Modulation and Multi-Set Space-Time Shift-Keying

open access: yesIEEE Access, 2018
Spatial modulation (SM) and multi-set space-time shift-keying (MS-STSK) are capable of striking a flexible design trade-off between the multiplexing and diversity gains attained.
Yichuan Li   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy