Optical aided target recognition system

James C. Kirsch; Brian K. Jones; Joseph J. Booth; Jason N. Duffey; Jeffrey A. Loudin; Jeffrey A. Sloan

doi:10.1117/12.256151

1 November 1996 Optical aided target recognition system

James C. Kirsch, Brian K. Jones, Joseph J. Booth, Jason N. Duffey, Jeffrey A. Loudin, Jeffrey A. Sloan

Proceedings Volume 2848, Materials, Devices, and Systems for Optoelectronic Processing; (1996) https://doi.org/10.1117/12.256151
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

A 32-channel system has been designed and built to process large-format synthetic aperture radar imagery. Eight Vander Lugt optical correlators operate in parallel, controlled by a single-board VME computer. The full-size images are divided into subscenes to match the processors' SLMs and compared to a stored filter bank. Each correlator incorporates two LCDs, four diffractive optical elements, a large CCD sensor, and a DSP based neural network post- processor. Custom drive electronics derive the LCDs at 60 Hz and double their normal operating resolution. The system is self-calibrating and automatically adjusts for a failure in any of the 8 processors. This paper will present a system level overview and discussion of each of the major sub- systems.

Citation Download Citation

James C. Kirsch, Brian K. Jones, Joseph J. Booth, Jason N. Duffey, Jeffrey A. Loudin, and Jeffrey A. Sloan "Optical aided target recognition system", Proc. SPIE 2848, Materials, Devices, and Systems for Optoelectronic Processing, (1 November 1996); https://doi.org/10.1117/12.256151

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