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» On the Processing of Decimated Signals
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ICASSP
2008
IEEE
16 years 1 months ago
Approximate lower bounds for rate-distortion in compressive sensing systems
We attempt to quantify the possible gains that can be achieved by examining a rate-distortion competition between a conventional and a compressive sampling solution to data rate r...
Bernard Mulgrew, Michael E. Davies
ICASSP
2008
IEEE
16 years 1 months ago
Scalable OFDM design for underwater acoustic communications
Multicarrier modulation in the form of OFDM has been actively pursued for underwater acoustic communication recently. In this paper, we present a desirable property of OFDM that o...
Baosheng Li, Shengli Zhou, Jie Huang, Peter Willet...
ICASSP
2008
IEEE
16 years 1 months ago
Multisensor multiband cross-energy tracking for feature extraction and recognition
In this paper, we present a multisensor multiband energy tracking scheme for robust feature extraction in noisy environments. We introduce a multisensor feature extraction algorit...
Stamatios Lefkimmiatis, Petros Maragos, Athanassio...
ICASSP
2008
IEEE
16 years 1 months ago
Improving the modeling of the noise part in the harmonic plus noise model of speech
Harmonic + Noise model (HNM) is a hybrid model of speech with a harmonic component and a noise component. While harmonic part describes efficiently the periodicities in speech si...
Yannis Pantazis, Yannis Stylianou
ICASSP
2008
IEEE
16 years 1 months ago
Stable sparse approximations via nonconvex optimization
We present theoretical results pertaining to the ability of ℓp minimization to recover sparse and compressible signals from incomplete and noisy measurements. In particular, we ...
Rayan Saab, Rick Chartrand, Özgür Yilmaz