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WCE
2007
15 years 8 months ago
Analog Spiking Neuron with Charge-Coupled Synapses
—This paper presents a compact analog neuron cell with an array of charge-coupled synapses connected via a common output terminal. Synaptic responses are fed into a current mirro...
Yajie Chen, Steve Hall, Liam McDaid, Octavian Buiu...
ICASSP
2010
IEEE
15 years 7 months ago
Coherence-based near-oracle performance guarantees for sparse estimation under Gaussian noise
We consider the problem of estimating a deterministic sparse vector x0 from underdetermined measurements Ax0 + w, where w represents white Gaussian noise and A is a given determin...
Zvika Ben-Haim, Yonina C. Eldar, Michael Elad
ICASSP
2010
IEEE
15 years 7 months ago
On unbiased estimation of sparse vectors corrupted by Gaussian noise
We consider the estimation of a sparse parameter vector from measurements corrupted by white Gaussian noise. Our focus is on unbiased estimation as a setting under which the dif...
Alexander Jung, Zvika Ben-Haim, Franz Hlawatsch, Y...
ICASSP
2010
IEEE
15 years 7 months ago
Two-stage spectrum sensing for cognitive radios
We consider a two-stage sensing scheme for cognitive radios where coarse sensing based on energy detection is performed in the first stage and, if required, fine sensing based o...
Sina Maleki, Ashish Pandharipande, Geert Leus
ICASSP
2010
IEEE
15 years 7 months ago
Parametric dictionary learning using steepest descent
In this paper, we suggest to use a steepest descent algorithm for learning a parametric dictionary in which the structure or atom functions are known in advance. The structure of ...
Mahdi Ataee, Hadi Zayyani, Massoud Babaie-Zadeh, C...