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ICASSP
2011
IEEE
8 years 3 months ago
Empirical divergence maximization for quantizer design: An analysis of approximation error
Empirical divergence maximization is an estimation method similar to empirical risk minimization whereby the Kullback-Leibler divergence is maximized over a class of functions tha...
Michael A. Lexa
ICASSP
2011
IEEE
8 years 3 months ago
Near-field array shape calibration
In the important domain of array shape calibration, the near-field case poses a challenging problem due to the array response complexity induced by the range effect. In this pape...
Shuang Wan, Pei-Jung Chung, Bernard Mulgrew
ICASSP
2011
IEEE
8 years 3 months ago
Robust nonparametric regression by controlling sparsity
Nonparametric methods are widely applicable to statistical learning problems, since they rely on a few modeling assumptions. In this context, the fresh look advocated here permeat...
Gonzalo Mateos, Georgios B. Giannakis
ICASSP
2011
IEEE
8 years 3 months ago
An efficient rank-deficient computation of the Principle of Relevant Information
One of the main difficulties in computing information theoretic learning (ITL) estimators is the computational complexity that grows quadratically with data. Considerable amount ...
Luis Gonzalo Sánchez Giraldo, José C...
ICASSP
2011
IEEE
8 years 3 months ago
The asymptotic properties of polynomial phase estimation by least squares phase unwrapping
Estimating the coefficients of a noisy polynomial phase signal is important in many fields including radar, biology and radio communications. One approach to estimation attempts...
Robby G. McKilliam, I. Vaughan L. Clarkson, Barry ...
ICASSP
2011
IEEE
8 years 3 months ago
Blind channel estimation for MPSK-based amplify-and-forward two-way relaying
We consider the problem of channel estimation for amplify-andforward (AF) two-way relay networks (TWRNs). The majority of works on this problem develop pilot-based algorithms that...
Saeed Abdallah, Ioannis N. Psaromiligkos
ICASSP
2011
IEEE
8 years 3 months ago
OFO estimation methods with wide acquisition ranges for MB-OFDM-based UWB systems
In MB-OFDM-based UWB systems, the different CFOs for different bands can be obtained by only estimating the OFO. To achieve OFO estimators with wide estimation ranges, we benefit...
Lin Bai, Qinye Yin
ICASSP
2011
IEEE
8 years 3 months ago
Source number estimation in impulsive noise environments using bootstrap techniques and robust statistics
We consider the problem of source number estimation in array processing when impulsive noise is present. To combat impulsive noise more effectively, two robust estimators with hig...
Zhihua Lu, Yacine Chakhchoukh, Abdelhak M. Zoubir
ICASSP
2011
IEEE
8 years 3 months ago
Entropy estimation using the principle of maximum entropy
In this paper, we present a novel entropy estimator for a given set of samples drawn from an unknown probability density function (PDF). Counter to other entropy estimators, the e...
Behrouz Behmardi, Raviv Raich, Alfred O. Hero
ICASSP
2011
IEEE
8 years 3 months ago
Log-spectral amplitude estimation with Generalized Gamma distributions for speech enhancement
This paper presents a family of log-spectral amplitude (LSA) estimators for speech enhancement. Generalized Gamma distributed (GGD) priors are assumed for speech short-time spectr...
Bengt J. Borgstrom, Abeer Alwan
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