Acousto-optically addressed Fourier transform matched filters
Abstract
Matched filters made using the Vander Lugt technique are addressed using an acousto-optic beam deflector with good correlation signals resulting. This method may be used to address arrays of matched filters at high scan rates thus providing the large optical memory necessary for absolute object recognition and discrimination in a variety of applications.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- August 1984
- Bibcode:
- 1984STIN...8522889G
- Keywords:
-
- Acousto-Optics;
- Fourier Transformation;
- Matched Filters;
- Optical Memory (Data Storage);
- Pattern Recognition;
- Signal Processing;
- Arrays;
- Beams (Radiation);
- Deflectors;
- Dioxides;
- Discrimination;
- Light (Visible Radiation);
- Piezoelectric Transducers;
- Tellurium Compounds;
- Electronics and Electrical Engineering