Accession Number:

ADA243333

Title:

Object Acquisition and Tracking for Space-Based Surveillance

Descriptive Note:

Final rept. Dec 1988-May 1990.

Corporate Author:

SPACE COMPUTER CORP SANTA MONICA CA

Personal Author(s):

Report Date:

1991-11-27

Pagination or Media Count:

101.0

Abstract:

This report presents the results of research carried out by Space Computer Corporation under the U.S. governments Small Business Innovation Research SBIR Program. The work was sponsored by the Strategic Defense Initiative Organization and managed by the Office of Naval Research under Contracts N00014-87-C-0801 Phase I and N00014-89-C-0015 Phase II. The basic purpose of this research was to develop and demonstrate a new approach to the detection of, and initiation of track on, moving targets using data from a passive infrared or visual sensor. This approach differs in very significant ways from the traditional approach of dividing the required processing into time dependent, object-dependent, and data-dependent processing stages. In that approach individual targets are first detected in individual image frames, and the detections are then assembled into tracks. That requires that the signal to noise ratio in each image frame be sufficient for fairly reliable target detection. In contrast, our approach bases detection of targets on multiple image frames, and, accordingly, requires a smaller signal to noise ratio. It is sometimes referred to as track before detect, and can lead to a significant reduction in total system cost. For example, it can allow greater detection range for a single sensor, or it can allow the use of smaller sensor optics. Both the traditional and track before detect approaches are applicable to systems using scanning sensors, as well as those which use staring sensors.

Subject Categories:

  • Optical Detection and Detectors
  • Infrared Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE