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Implementation of the locally competitive algorithm on a field programmable analog array

Sparse approximation is an important class of optimization problem in signal and image processing applications. This thesis presents an analog solution to this problem, based on the Locally Competitive Algorithm (LCA). A Hopfield-Network-like analog system, operating on sub-threshold currents is proposed as a solution.
The results of the circuit components' implementation on the RASP2.8a chip, a Field Programmable Analog Array, are presented.

Identiferoai:union.ndltd.org:GATECH/oai:smartech.gatech.edu:1853/37255
Date17 November 2009
CreatorsBalavoine, Aurèle
PublisherGeorgia Institute of Technology
Source SetsGeorgia Tech Electronic Thesis and Dissertation Archive
Detected LanguageEnglish
TypeThesis

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