Accession Number : ADA086665


Title :   Optical Interarray Processing.


Descriptive Note : Final rept. 1 Oct 79-31 Mar 80.


Corporate Author : HONEYWELL CORPORATE MATERIAL SCIENCES CENTER BLOOMINGTON MN


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a086665.pdf


Report Date : Mar 1980


Pagination or Media Count : 41


Abstract : This project had two major objectives. The first objective was to demonstrate nonreal time generation of ambiguity functions from one dimensional input transducers. The second objective was to design front end and rear end electronics capable of supporting real time operation of the optical processor. Both of these objectives were successfully achieved, and in addition, a new optical architecture was invented (LIPS), and its feasibility and superiority was experimentally demonstrated. The optical system demonstrating the proposed Passive Optical Tau-Shift concept (POTS) was designed with a large f number (20) for aberration-free performance, and the system length became 12 meters. One dimensional Bragg cell-sized photographic transparencies were used to generate ambiguity functions. The results of processing both analytic V-FM signals and synthetic data from NOSC showed excellent agreement with theoretical predictions in terms of the correlation peak height and resolution. Another optical architecture based on an entirely new concept of a space variant Linear Phase Shifter (LIPS) was independently developed. It generates a tau-shift by a shear operation instead of the rotation used in POTS.


Descriptors :   *OPTICAL PROCESSING , FOURIER TRANSFORMATION , LINEAR SYSTEMS , REAL TIME , DATA RATE , ROTATION


Subject Categories : Numerical Mathematics
      Optics


Distribution Statement : APPROVED FOR PUBLIC RELEASE