Sciweavers

5451 search results - page 401 / 1091
» The SIGNAL Expert System
Sort
View
ICASSP
2008
IEEE
16 years 2 months ago
Non-negative sparse image coder via simulated annealing and pseudo-inversion
We propose a sparse non-negative image coding based on simulated annealing and matrix pseudo-inversion. We show that sparsity and non-negativity are both important to obtain part-...
Ramin Pichevar, Jean Rouat
ICASSP
2008
IEEE
16 years 2 months ago
OFDM for underwater acoustic communications: Adaptive synchronization and sparse channel estimation
A phase synchronizationmethod, which provides non-uniform frequency offset compensation needed for wideband OFDM [1], is coupled with low-complexity channel estimation in the time...
Milica Stojanovic
ICC
2007
IEEE
122views Communications» more  ICC 2007»
16 years 1 months ago
Optimum-Weighted RLS Channel Estimation for Time-Varying Fast Fading MIMO Channels
— A multiple-input multiple-output (MIMO) system, where multiple antennas are used at both transmitter and receiver, has been a promising technique for realizing highspeed wirele...
Toshiaki Koike
ISCAS
2007
IEEE
141views Hardware» more  ISCAS 2007»
16 years 1 months ago
Towards a GBit/s Programmable Decoder for LDPC Convolutional Codes
Abstract— We analyze the decoding algorithm for regular timeinvariant LDPC convolutional codes as a 3D signal processing scheme and derive several parallelization concepts, which...
Emil Matús, Marcos B. S. Tavares, Marcel Bi...
ICA
2007
Springer
16 years 1 months ago
Blind Source Separation of a Class of Nonlinear Mixtures
In this work, we deal with blind source separation of a class of nonlinear mixtures. The proposed method can be regarded as an adaptation of the solutions developed in [1, 2] to th...
Leonardo Tomazeli Duarte, Christian Jutten