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10 June 1987Optical Architecture Of Acousto-Optic Cell Real-Time Correlation
An architecture for a real-time signal correlation based on optical joint transform correlation is proposed. Two parallel on-plane acousto-optic (AO) cells and a liquid crystal light valve (LCLV) are employed to produce crosscorrelation of two electrical signals. Arranging two AO cells on the same plane, this architecture can be implemented in a compact form. The proposed architecture has a capability of performing parallel multiple crosscorrelations by adding AO cells on the input plane. The theoretical analysis and preliminary experimental results are presented.