Production and Analysis of Computer-Generated Holographic Matched Filters.
Final rept. Oct 82-Sep 85,
AIR FORCE ARMAMENT LAB EGLIN AFB FL
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This report presents techniques for the use of computer-generated holograms CGH for matched filtering. An overview of the supporting technology is provided. Included are techniques for modifying existing CGH algorithms to serve as matched filters in an optical correlator. It shows that matched filters produced in this fashion can be modified to improve the signal-to-noise and efficiency over the possible with conventional holography. The effect and performance of these modifications are demonstrated. In addition, a correction of film nonlinearity in continuous-tone filter production is developed. Computer simulations provide quantitative and qualitative demonstration of theoretical principles, with specific examples validated in optical hardware. Conventional and synthetic holograms, both bleached and unbleached, are compared. Keywords include Lasers, Holography, Matched Filters, and Computer-Generated Pattern Recognition.
- Lasers and Masers