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ICASSP
2011
IEEE
12 years 11 months ago
Microphone position optimization for planar superdirective beamforming
The performance of a fixed beamformer highly depends on the position of the microphones in the array. In this paper, different heuristic optimisation approaches for arbitrary pla...
Ina Kodrasi, Thomas Rohdenburg, Simon Doclo
ICASSP
2011
IEEE
12 years 11 months ago
A multiwindow time-frequency approach based on the concepts of robust estimate theory
An approach to multiwindow time-frequency analysis that provides robust performance in noisy environment is proposed. The concept of robust estimates of instantaneous frequency is...
Irena Orovic, Nikola Zaric, Srdjan Stankovic, Moen...
ICASSP
2011
IEEE
12 years 11 months ago
Audio identification based on spectral modeling of bark-bands energy and synchronization through onset detection
In this paper, we present for the first time the fingerprint IRCAM system for audio identification in streams. The baseline system relies on a double-nested Short Time Fourier ...
Mathieu Ramona, Geoffroy Peeters
ICASSP
2011
IEEE
12 years 11 months ago
An extension of the ICA model using latent variables
The Independent Component Analysis (ICA) model is extended to the case where the components are not necessarily independent: depending on the value a hidden latent process at the ...
Selwa Rafi, Marc Castella, Wojciech Pieczynski
ICASSP
2011
IEEE
12 years 11 months ago
RSS-based sensor localization with unknown transmit power
Received signal strength (RSS)-based single source localization when there is not a prior knowledge about the transmit power of the source is investigated. Because of nonconvex be...
Reza M. Vaghefi, Mohammad Reza Gholami, Erik G. St...
ICASSP
2011
IEEE
12 years 11 months ago
Parameter estimation using sparse reconstruction with dynamic dictionaries
We consider the problem of parameter estimation for signals characterized by sums of parameterized functions. We present a dynamic dictionary subset selection approach to paramete...
Christian D. Austin, Joshua N. Ash, Randolph L. Mo...
ICASSP
2011
IEEE
12 years 11 months ago
Performance analysis of a randomly spaced wireless microphone array
A randomly distributed microphone array is considered in this work. In many applications exact design of the array is impractical. The performance of these arrays, characterized b...
Shmulik Markovich Golan, Sharon Gannot, Israel Coh...
ICASSP
2011
IEEE
12 years 11 months ago
Iterative estimation of structures of multiple RNA homologs: Turbofold
TurboFold, an iterative algorithm for estimating the common secondary structures of multiple RNA homologs, is presented. The algorithm is motivated by and has structure and attrib...
Gaurav Sharma, Arif Ozgun Harmanci, David H. Mathe...
ICASSP
2011
IEEE
12 years 11 months ago
Fundamental diversity, multiplexing, and array gain tradeoff under different MIMO channel models
Following the seminal work of Zheng and Tse on the diversity and multiplexing tradeoff (DMT) of MIMO channels, in this paper we introduce the array gain to investigate the fundame...
Luis Garcia Ordóñez, Daniel Pé...
ICASSP
2011
IEEE
12 years 11 months ago
DSP evolution from a teaching point of view
In this paper the authors are addressing the concerns associated with fast growing DSP chips and tools and the impact they have on teaching DSP implementation. The authors also pr...
Naim Dahnoun, Jason Brand