ICASSP
2011
IEEE
12 years 9 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 9 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 9 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 9 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 9 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 9 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 9 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-...
ICASSP
2011
IEEE
12 years 9 months ago
2011
IEEE
Modern approaches to speaker recognition (verification) operate in a space of “supervectors” created via concatenation of the mean vectors of a Gaussian mixture model (GMM) a...
ICASSP
2011
IEEE
12 years 9 months ago
2011
IEEE
A dependent hierarchical beta process (dHBP) is developed as a prior for data that may be represented in terms of a sparse set of latent features (dictionary elements), with covar...
ICASSP
2011
IEEE
12 years 9 months ago
2011
IEEE
In this paper, we consider the source-channel rate allocation for different transmission schemes. We propose a new trellis structure and a new algorithm that are able to deal with...