Results 91 to 100 of about 4,215 (185)

Underdetermined Blind Source Separation of Synchronous Orthogonal Frequency-Hopping Signals Based on Tensor Decomposition Method

open access: yesIEEE Access, 2018
This paper considers the problems of synchronous orthogonal frequency-hopping (FH) signals separation and direction of arrival (DOA) estimation in the underdetermined situation.
Chaozhu Zhang, Yu Wang, Fulong Jing
doaj   +1 more source

Frequency‐hopping signals sorting based on underdetermined blind source separation

open access: yesIET Communications, 2013
Most of the earlier approaches for frequency‐hopping (FH) signals sorting with a single sensor do not adapt to synchronous network, whereas the multiple‐sensor‐based algorithms request the number of sensors must be more than that of signals.
Zhi‐Chao Sha   +3 more
openaire   +1 more source

Blind extraction of underdetermined mixtures via time-frequency mask

open access: yesTongxin xuebao, 2012
For blind source estimation problem of underdetermined and non-completely sparse signals,a novel blind extraction algorithm was proposed.The algorithm combined the non-completely sparse blind extraction algorithm with the DUET approach.It computed ...
Ming XIAO   +3 more
doaj   +2 more sources

DOA-informed switching independent vector extraction and beamforming for speech enhancement in underdetermined situations

open access: yesEURASIP Journal on Audio, Speech, and Music Processing
This paper proposes novel methods for extracting a single Speech signal of Interest (SOI) from a multichannel observed signal in underdetermined situations, i.e., when the observed signal contains more speech signals than microphones.
Tetsuya Ueda   +4 more
doaj   +1 more source

A Single-Channel Blind Source Separation Technique Based on AMGMF and AFEEMD for the Rotor System

open access: yesIEEE Access, 2018
To improve the accuracy of the diagnosis of the composite failure of the rotor system under underdetermined conditions, a single-channel blind source separation method based on an adaptive multiscale generalized morphology filter (AMGMF) and an adaptive ...
Hongchun Sun   +2 more
doaj   +1 more source

SECOND ORDER BLIND IDENTIFICATION OF SINGLE-CHANNEL SIGNAL BASED ON KERNELS

open access: yesJixie qiangdu, 2018
Weight-adjusted variant second order blind identification( WASOBI) algorithm had been used in fault diagnosis field,but it couldn’t separate source signal when the observation signal’s dimension was insufficient.
刘邦, 肖涵, 易灿灿
doaj  

MAP-Based Underdetermined Blind Source Separation of Convolutive Mixtures by Hierarchical Clustering and ℓ1-Norm Minimization

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
We address the problem of underdetermined BSS. While most previous approaches are designed for instantaneous mixtures, we propose a time-frequency-domain algorithm for convolutive mixtures.
Hiroshi Sawada   +3 more
doaj   +1 more source

Design and performance analysis of a blind source separation algorithm for piano music signals

open access: yesDiscover Computing
As the modern music industry continues to advance, musical signal separation technology has become essential to piano music production, analysis, and education. However, during actual piano performances, the number of observed signals may be greater than,
Qun Wei
doaj   +1 more source

Unraveling Mixtures: A Novel Underdetermined Blind Source Separation Approach via Sparse Component Analysis

open access: yesIEEE Access
Underdetermined blind source separation (UBSS) is a critical technique in the field of intelligent mechanical operation and maintenance that allows for the disentanglement of source signals from their mixtures without the need for prior knowledge or ...
Yanyang Li   +4 more
doaj   +1 more source

Jammer Suppression in DS-CDMA Communications using Parafac-based Blind Separation

open access: yesMATEC Web of Conferences, 2016
In this paper we propose to apply parafac-based source separation techniques for jammer suppression in direct spread spectrum communication systems. The jammer excision is formulated as an optimization problem and a new algorithm is presented which is ...
Xu Lingyun, Zeng Xianwei, Zhang Xiaofei
doaj   +1 more source

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