Digital Correlation Tracker, Phase 1. Computer Simulation
Final rept. Oct 1973-Jun 1974
WESTINGHOUSE DEFENSE AND ELECTRONICS CENTER BALTIMORE MD SYSTEMS DEVELOPMENT DIV
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The conclusions derived from an analytical investigation of the performance of several trackers are described in this final technical report on Phase I of the Digital Correlation Tracker Program. The trackers investigated utilize edge, centroid, and digital correlation algorithms to derive error signals for directing the line of sight of an imaging sensor at a target within its field of view. A Computer Simulation Package for implementation on the CDC 6600 was developed for this analysis. Real input target imagery data were supplied from the AFWL Field Test Telescope. A preliminary digital correlation tracker design for mechanization of the correlation algorithm which demonstrated most precise tracking performance is presented together with the plans for a second-phase effort for its fabrication and test. The computer simulation demonstrated the superior performance of the correlation tracker for precise tracking of fine target detail under varying background conditions. The correlation tracker afforded constant gain independent of the pattern of the image and showed the least tracking noise or jitter.
- Optical Detection and Detectors