ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
—We present a probabilistic framework for physical layer secrecy when the locations and channels of the eavesdroppers are unknown. The locations are modeled by a Poisson point pr...
ICASSP
2011
IEEE
2011
IEEE
A wavelet-based data imputation approach to spectrogram reconstruction for robust speech recognition
12 years 11 months ago
Data imputation approaches for robust automatic speech recognition reconstruct noise corrupted spectral information by exploiting prior knowledge of the relationship between targe...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
In this paper we present a number of improvements that were recently made to the template based speech recognition system developed at ESAT. Combining these improvements resulted ...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
This paper is concerned with the estimation of the directionsof-arrival (DOA) of narrowband sources using a sparse spatial spectral model, when the model itself is not precise. Wh...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
In this paper, a Successive Interference Cancellation (SIC) receiver typically used for Code Division Multiple Access (CDMA) communications is developed to be used as piano chord ...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
In this paper, we consider the problem of separating a set of independent components when only one movable sensor is available to record the mixtures. We propose to exploit the qu...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
Improving on recent work on joint source-filter analysis of speech waveforms, we explore improvements to an autoregressive model with exogenous inputs represented by flexible ba...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
In Cognitive Radio (CR) systems, spectrum sensing plays a key role to determine the free frequency bands. However, when the primaryuser (PU) signal spectrum exhibits localized fad...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
The paper addresses content-based image retrieval from texture databases, by using stochastic modeling in the wavelet domain. It proposes an analysis of the key parameters involve...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
We present a new wideband spectral envelope estimation framework for the artificial bandwidth extension problem. The proposed framework builds temporal clusters of the joint sub-...