1 November 1996 Optical aided target recognition system
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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.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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); doi: 10.1117/12.256151; https://doi.org/10.1117/12.256151

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