Acousto-Optic Processing Of Large Time Bandwidth Radar Signals

M. Gottlieb; J. J. Conroy

doi:10.1117/12.955996

28 December 1977 Acousto-Optic Processing Of Large Time Bandwidth Radar Signals

M. Gottlieb, J. J. Conroy

Proceedings Volume 0128, Effective Utilization of Optics in Radar Systems; (1977) https://doi.org/10.1117/12.955996
Event: Effect Utilization of Optics in Radar Systems, 1977, Huntsville, United States

Abstract

A number of requirements exist for processing signals of very long duration and moderate bandwidth (~10 MHz), such as in high resolution radar and secure communications systems. Acousto-optic methods have been known for many years, but have not been adopted in practice largely due to the simplicity of acoustic surface wave devices. Acousto-optic processors are, however, competitive, where very long storage times, up to one millisecond, are re-required. We have built delay lines with paths folded in two dimensions for storage up to 350 microseconds, and delay lines folded in three dimensions with storage near one milli-second. The acousto-optic processor was applied to the demonstration of synchronization and detection of data of a secure communications system, and also to the cross-correlation of a Barker coded signal with a set of Doppler shifted references.

Citation Download Citation

M. Gottlieb and J. J. Conroy "Acousto-Optic Processing Of Large Time Bandwidth Radar Signals", Proc. SPIE 0128, Effective Utilization of Optics in Radar Systems, (28 December 1977); https://doi.org/10.1117/12.955996

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KEYWORDS

Acoustics

Signal processing

Signal attenuation

Acousto-optics

Transducers

Radar

Doppler effect

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