Real Time Optical Processing Of Frequency Hopped Spread Spectrum Signal

Bahram Javidi

doi:10.1117/12.946935

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22 August 1988 Real Time Optical Processing Of Frequency Hopped Spread Spectrum Signal

Bahram Javidi

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Proceedings Volume 0936, Advances in Optical Information Processing III; (1988) https://doi.org/10.1117/12.946935
Event: 1988 Technical Symposium on Optics, Electro-Optics, and Sensors, 1988, Orlando, FL, United States

Abstract

This paper is an experimental investigation of the performance of a real-time spread spectrum optical signal processor. The technique developed here is used to detect large time bandwidth product spread spectrum signals transmitted by the frequency hopping method and can yield self bit synchronization. This real-time optical system can generate the two dimensional correlation distribution between the reference data and the input data at the output plane of the processor. The conversion of the spread spectrum data from the time domain to the space domain is performed by acousto-optic Bragg cells and charged coupled devices. The two dimensional correlation between the input data and the reference data is obtained by joint transform correlation. The spread spectrum processor consists of a real-time optical correlator. Experimental results obtained by the real-time spread spectrum optical processor for various frequency hopped signals are presented. Various methods of converting the time data to two dimensional code patterns are described.

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Bahram Javidi "Real Time Optical Processing Of Frequency Hopped Spread Spectrum Signal", Proc. SPIE 0936, Advances in Optical Information Processing III, (22 August 1988); https://doi.org/10.1117/12.946935

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