Sciweavers

ICASSP
2010
IEEE
13 years 7 months ago
Speech presence probability estimation based on temporal cepstrum smoothing
We propose a novel, robust estimator for the probability of speech presence at each time-frequency point in the short-time discrete Fourier domain. While existing estimators perfo...
Timo Gerkmann, Martin Krawczyk, Rainer Martin
ICASSP
2010
IEEE
13 years 7 months ago
Learning from high-dimensional noisy data via projections onto multi-dimensional ellipsoids
In this paper, we examine the problem of learning from noisecontaminated data in high-dimensional space. A new learning approach based on projections onto multi-dimensional ellips...
Liuling Gong, Dan Schonfeld
ICASSP
2010
IEEE
13 years 7 months ago
An online quasi-Newton algorithm for blind SIMO identification
In the last decade various time- and frequency-domain algorithms were derived to blindly identify acoustic systems. One of these algorithms is the multichannel Newton (MCN) algori...
Emanuel A. P. Habets, Patrick A. Naylor
ICASSP
2010
IEEE
13 years 7 months ago
Consensus in correlated random topologies: Weights for finite time horizon
We consider the weight design problem for the consensus algorithm under a finite time horizon. We assume that the underlying network is random where the links fail at each iterat...
Dusan Jakovetic, João Xavier, José M...
ICASSP
2010
IEEE
13 years 7 months ago
Modulated wideband converter with non-ideal lowpass filters
We investigate the impact of using non-ideal lowpass filters in the modulated wideband (MWC) converter, which is a recent subNyquist sampling system for sparse wideband analog si...
Yilun Chen, Moshe Mishali, Yonina C. Eldar, Alfred...
ICASSP
2010
IEEE
13 years 7 months ago
Limited feedback with joint CSI quantization for multicell cooperative generalized eigenvector beamforming
Existing work on limited feedback for cooperative multicell beamforming quantizes the desired and interfering channel state information (CSI) using separate codebooks. In this pap...
Ramya Bhagavatula, Robert W. Heath Jr., Bhaskar D....
ICASSP
2010
IEEE
13 years 7 months ago
Vocabulary and language model adaptation using just one speech file
This paper investigates unsupervised vocabulary and language model self-adaptation (VLA) from just one speech file using the web as a knowledge source and without prior knowledge...
Sha Meng, Kishan Thambiratnam, Yimeng Lin, Lifang ...
ICASSP
2010
IEEE
13 years 7 months ago
Two novel compressed-sensing algorithms for NBI detection in OFDM systems
We propose two novel algorithms based on compressed-sensing theory to estimate and cancel narrow band interference (NBI) in orthogonal frequency division multiplexing (OFDM) syste...
Ahmad Gomaa, K. M. Zahidul Islam, Naofal Al-Dhahir
ICASSP
2010
IEEE
13 years 7 months ago
Estimation of frame independent and enhancement components for speech communication over packet networks
In this paper, we describe a new approach to cope with packet loss in speech coders. The idea is to split the information present in each speech packet into two components, one to...
Daniele Giacobello, Manohar N. Murthi, Mads Gr&ael...
ICASSP
2010
IEEE
13 years 7 months ago
On expectation maximization based channel and noise estimation beyond the vector Taylor series expansion
In this work, we show how expectation maximization based simultaneous channel and noise estimation can be derived without a vector Taylor series expansion. The central idea is to ...
Friedrich Faubel, John W. McDonough, Dietrich Klak...