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» Estimation of the noise correlation matrix
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DSP
2008
14 years 10 months ago
Phase dependence mitigation for autocorrelation-based frequency estimation
The sinusoidal frequency estimation from short data records based on Toeplitz autocorrelation (AC) matrix estimates suffer from the dependence on the initial phases of the sinusoi...
Mustafa A. Altinkaya, Emin Anarim, Bülent San...
IJCV
2000
133views more  IJCV 2000»
14 years 9 months ago
Heteroscedastic Regression in Computer Vision: Problems with Bilinear Constraint
We present an algorithm to estimate the parameters of a linear model in the presence of heteroscedastic noise, i.e., each data point having a different covariance matrix. The algor...
Yoram Leedan, Peter Meer
VTC
2006
IEEE
121views Communications» more  VTC 2006»
15 years 3 months ago
Estimation of the Channel-Impulse-Response Length for Adaptive OFDM Systems Based on Information Theoretic Criteria
Abstract—This paper proposes a new scheme based on information theoretical criteria to estimate the Channel-ImpulseResponse (CIR) length, whose accurate estimate represents one o...
Ali Aassie Ali, Van-Duc Nguyen, Kyandoghere Kyamak...
CDC
2009
IEEE
130views Control Systems» more  CDC 2009»
15 years 1 months ago
Mixed linear system estimation and identification
We consider a mixed linear system model, with both continuous and discrete inputs and outputs, described by a coefficient matrix and a set of noise variances. When the discrete inp...
Argyrios Zymnis, Stephen P. Boyd, Dimitry M. Gorin...
ICA
2007
Springer
14 years 11 months ago
Bayesian Estimation of Overcomplete Independent Feature Subspaces for Natural Images
In this paper, we propose a Bayesian estimation approach to extend independent subspace analysis (ISA) for an overcomplete representation without imposing the orthogonal constraint...
Libo Ma, Liqing Zhang