173 search results - page 5 / 35 » An Alternating Minimization Method for Sparse Channel Estima... |
TSP
2010
13 years 2 months ago
2010
We present two simple methods for recovering sparse signals from a series of noisy observations. The theory of compressed sensing (CS) requires solving a convex constrained minimiz...
ACL
1993
13 years 9 months ago
1993
In recent years there is much interest in word cooccurrence relations, such as n-grams, verb-object combinations, or cooccurrence within a limited context. This paper discusses ho...
ISCAS
2008
IEEE
14 years 2 months ago
2008
IEEE
Abstract— Most of the existing MIMO-OFDM channel estimation methods do not take into account the effect of the pulseshaping filter in the transmitter nor of the matched filter ...
ICASSP
2010
IEEE
13 years 7 months ago
2010
IEEE
Frequency hopping (FH) signals have well-documented merits for commercial and military applications due to their near-far resistance and robustness to jamming. Estimating FH signa...
CORR
2010
Springer
13 years 7 months ago
2010
Springer
Abstract--We apply Guo and Wang's relaxed belief propagation (BP) method to the estimation of a random vector from linear measurements followed by a componentwise probabilisti...