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Article Dans Une Revue Journal de Physique III Année : 1991

Système de traitement acousto-optique de signaux numériques

Résumé

The transversal filter is a fundamental device in numerical signal processing. Among all available techniques, the acousto-optic convolution is very well matched to this function. Some penalties occur however, for very long input signals, owing to the physical configuration of the convolver and to the propagation of acoustic waves in its bulk. This calls for the study of a convenient computation algorithm taking all the constraints into account. The realization of an hybrid processor enabled us to evaluate its main characteristics using experiments like autoconvolution, F.I.R. filtering, Golay's and Barker's codes or matrix multiplication. Since the built system is actually a prototype, a number of extensions and improvements are presented, which may lead to the optimization of the processing speed.

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jpa-00248693 , version 1 (04-02-2008)

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Philippe Goutin, P. Logette, Jean-Michel Rouvaen, E. Bridoux. Système de traitement acousto-optique de signaux numériques. Journal de Physique III, 1991, 1 (10), pp.1695-1710. ⟨10.1051/jp3:1991223⟩. ⟨jpa-00248693⟩
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