Sciweavers

509 search results - page 11 / 102
» icassp 2008
Sort
View
135
Voted
ICASSP
2008
IEEE
15 years 11 months ago
An improved mu-law proportionate NLMS algorithm
In this paper, we propose an algorithm to improve the performance of the mu-law PNLMS algorithm (MPNLMS) for nonsparse impulse responses. Although the existing MPNLMS algorithm wa...
Ligang Liu, Masahiro Fukumoto, Sachio Saiki
ICASSP
2008
IEEE
15 years 11 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
ICASSP
2008
IEEE
15 years 11 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
15 years 11 months ago
Nonstationary multiple-antenna interference cancellation for unsynchronized OFDM systems with distributed training
Adaptive interference cancellation is addressed in an orthogonal frequency division multiplexing (OFDM) system with a frame containing a number of temporally distributed pilot sym...
Alexandr M. Kuzminskiy, Yuri I. Abramovich
ICASSP
2008
IEEE
15 years 11 months ago
Trajectory inverse kinematics by nonlinear, nongaussian tracking
We study trajectory inverse kinematics: to find a feasible trajectory in angle space that produces a given trajectory in workspace. We explicitly represent the multivalued invers...
Chao Qin, Miguel Á. Carreira-Perpiñ&...