Accession Number : ADA136216

Title :   Optical Data Processing for Missile Guidance.

Descriptive Note : Interim rept. Sep 82-Sep 83,


Personal Author(s) : Casasent,D

PDF Url : ADA136216

Report Date : 30 Sep 1983

Pagination or Media Count : 117

Abstract : Progress on real-time 1-D and 2-D spatial light modulators, optical systolic array processors, optical image processing, and distortion-invariant pattern recognition are reported. Our real-time spatial light modulator research concerns the Soviet PRIZ device and bulk acoustic-optic transducers. Novel features detailed for the Soviet device include: uniform and directional spatial filtering and static image suppression or change detection. Systolic array processor research includes a new frequency-multiplexed architecture, realization of singular value decomposition and matrix decomposition algorithms. Optical image processing and pattern recognition research received major attention. A new class of nonlinear local operators including the Sobel operator were described and demonstrated. New optical feature generation techniques for distortion-invariant pattern recognition were developed. These include the generalized optical chord transformation. Our primary distortion-invariant pattern recognition research addressed synthetic discriminant functions with attention to two new efficient calculation techniques. The performance of synthetic discriminant functions for multi-class distortion-invariant pattern recognition, and initial noise performance of this optical pattern recognition algorithm. (Author)

Descriptors :   *Autonomous navigation, *Optical correlators, *Operators(Mathematics), *Guided missiles, *Optical processing, *Data processing, *Light modulators, Foreign technology, High pass filters, High resolution, Matched filters, Change detection, Mathematical filters, Terminal homing, Pattern recognition, Real time, Kalman filtering, Images, Pattern recognition, Edges, Air to air missiles, Solutions(General), Acoustooptics, Optics, Algorithms, Data bases, Holography, USSR

Subject Categories : Theoretical Mathematics
      Air- and Space-launched Guided Missiles

Distribution Statement : APPROVED FOR PUBLIC RELEASE