Time-integrating acousto-optical processors

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350162SF, 350358, 364837, G06G 900, G06G 719

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active

042259380

ABSTRACT:
Disclosed are acousto-optical information processors employing a two-dimensional, time-integrating architecture. These three-product type processors are multi-purpose processors which can perform a variety of complex signal processing operations in two-dimensions, without requiring two-dimensional spatial light modulators. Typical of these processing operations are two-dimensional correlation, spectrum analysis, and cross ambiquity function processing. Some of the two-dimensional processing operations are made possible by the incorporation into a two-dimensional correlator of a distributed local oscillator, which may be implemented with mechanical-optical or electro-optical techniques. The acousto-optical processors may be easily implemented with readily available optical and acousto-optical components.

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patent: 4158503 (1979-06-01), Balasubramanian
Sprague et al., Time Integrating Acoustic Correlator Applied Optics, Jan. 1976, vol. 15, No. 1, pp. 89-92.

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