Results 51 to 60 of about 11,070,228 (147)

Sparse signal subspace decomposition based on adaptive over-complete dictionary

open access: yesEURASIP Journal on Image and Video Processing, 2017
This paper proposes a subspace decomposition method based on an over-complete dictionary in sparse representation, called “sparse signal subspace decomposition” (or 3SD) method. This method makes use of a novel criterion based on the occurrence frequency
Hong Sun   +2 more
doaj   +1 more source

Matched direction detectors and estimators for array processing with subspace steering vector uncertainties [PDF]

open access: yes, 2005
In this paper, we consider the problem of estimating and detecting a signal whose associated spatial signature is known to lie in a given linear subspace but whose coordinates in this subspace are otherwise unknown, in the presence of subspace ...
Besson, Olivier   +2 more
core  

Millimeter Wave Channel Estimation Based on Subspace Fitting

open access: yesIEEE Access, 2018
We consider the channel estimation of millimeter wave (mmWave) multiple-input multiple-output systems, where both the transmitter and receiver adopt hybrid beamforming structure.
Didi Zhang   +3 more
doaj   +1 more source

Forecasting linear dynamical systems using subspace methods [PDF]

open access: yes
A new procedure to predict with subspace methods is presented in this paper. It is based on combining multiple forecasts obtained from setting a range of values for a specic parameter that is typically xed by the user in the subspace methods literature ...
Alfredo García-Hiernaux
core  

Signal Subspace Speech Enhancement with Oblique Projection and Normalization [PDF]

open access: yesRadioengineering, 2017
In this paper, a subspace speech enhancement method handling colored noise using oblique projection is proposed. Perceptual features and variance normalization are used to reduce residual noise and improve speech intelligibility of the output. Initially,
S. Surendran, T. K. Kumar
doaj  

Robust gait recognition from extremely low frame-rate videos [PDF]

open access: yes, 2013
In this paper, we propose a gait recognition method for extremely low frame-rate videos. Different from the popular temporal reconstruction-based methods, the proposed method uses the average gait over the whole sequence as input feature template ...
Choudhury, Sruti Das   +2 more
core   +1 more source

Unsupervised Locality-Preserving Robust Latent Low-Rank Recovery-Based Subspace Clustering for Fault Diagnosis

open access: yesIEEE Access, 2018
With the increasing demand for unsupervised learning for fault diagnosis, the subspace clustering has been considered as a promising technique enabling unsupervised fault diagnosis. Although various subspace clustering methods have been developed to deal
Jie Gao   +4 more
doaj   +1 more source

Noise adaptive training for subspace Gaussian mixture models [PDF]

open access: yes, 2013
Noise adaptive training (NAT) is an effective approach to normalise environmental distortions when training a speech recogniser on noise-corrupted speech.
Renals, Steve, Ghoshal, Arnab, Lu, Liang
core  

Unit Roots and Cointegrating Matrix Estimation using Subspace Methods [PDF]

open access: yes
We propose a new procedure to detect unit roots based on subspace methods. It has three main original features. First, the same method can be applied to single or multiple time series.
José Casals   +2 more
core  

Home - About - Disclaimer - Privacy