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ICASSP
2009
IEEE
15 years 11 months ago
OFDM Turbo DeCodulation with exit optimized bit loading and signal constellations
We propose the combination of Orthogonal Frequency Division Multiplexing (OFDM) and Turbo DeCodulation (TDeC) – a multiple Turbo process consisting of iterative demodulation and...
Helge Lüders, Benedikt Eschbach, Laurent Schm...
ICASSP
2011
IEEE
14 years 8 months ago
Direct processing of mpeg audio using companding and BFP techniques
We present techniques for processing MPEG-audio encoded signals during the decoding process, using efficient fixed-point arithmetic operations. A large signal-to-quantization-no...
Christos Vezyrtzis, Aaron E. Klein, Dan Ellis, Yan...
ICASSP
2011
IEEE
14 years 8 months ago
Adjugate pairs of sparse arrays for sampling two dimensional signals
Sparse sampling with coprime lattice arrays was introduced recently in the literature. It has been shown that a dense coarray can be constructed from such a pair of arrays, and is...
Palghat P. Vaidyanathan, Piya Pal
ICASSP
2009
IEEE
15 years 11 months ago
Compressive spectral estimation for nonstationary random processes
We propose a “compressive” estimator of the Wigner-Ville spectrum (WVS) for time-frequency sparse, underspread, nonstationary random processes. A novel WVS estimator involving...
Alexander Jung, Georg Tauböck, Franz Hlawatsc...
ICIP
2006
IEEE
16 years 6 months ago
Theoretical Model of the Coding Error in MCWT Video Coders
In motion-compensated wavelet based video coders (MCWT), it is known that a precise motion estimation is necessary to minimize the wavelet coefficients energy. However, a motion v...
Marie Andrée Agostini, Marc Antonini