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144
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ICASSP
2008
IEEE
15 years 10 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
134
Voted
ICIP
2010
IEEE
15 years 1 months ago
Gradient projection for linearly constrained convex optimization in sparse signal recovery
The 2- 1 compressed sensing minimization problem can be solved efficiently by gradient projection. In imaging applications, the signal of interest corresponds to nonnegative pixel...
Zachary T. Harmany, Daniel Thompson, Rebecca Wille...
127
Voted
ICASSP
2011
IEEE
14 years 7 months ago
Sliding window greedy RLS for sparse filters
We present a sliding window RLS for sparse filters, based on the greedy least squares algorithm. The algorithm adapts a partial QR factorization with pivoting, using a simplifie...
Alexandru Onose, Bogdan Dumitrescu, Ioan Tabus
ICASSP
2011
IEEE
14 years 7 months ago
Transient acoustic signal classification using joint sparse representation
In this paper, we present a novel joint sparse representation based method for acoustic signal classification with multiple measurements. The proposed method exploits the correla...
Haichao Zhang, Nasser M. Nasrabadi, Thomas S. Huan...
112
Voted
ICASSP
2011
IEEE
14 years 7 months ago
A sparse covariance-based method for direction of arrival estimation
In this paper we present a new sparse iterative covariance-based estimation approach, called SPICE, to the direction of arrival estimation problem. SPICE is obtained by the minimi...
Petre Stoica, Prabhu Babu, Jian Li