Accession Number:

ADA036435

Title:

Automatic Target Hand-Off Using Correlation Techniques

Descriptive Note:

Final rept. 5 Dec 1975-31 Jan 1977

Corporate Author:

AUBURN UNIV AL ENGINEERING EXPERIMENT STATION

Report Date:

1977-01-31

Pagination or Media Count:

145.0

Abstract:

The problem of automatic hand-off of a target from a precision pointing and tracking system PTS to an imaging missile seeker is considered in this report. The approach taken is to search for the target in the seeker field of view FOV using the PTS video as a reference. When the target is located, the seeker line of sight is adjusted automatically such that the target is at the center of its FOV at which point the seeker tracker can lock on to the target. Location of the target in the seeker FOV can best be accomplished using correlation techniques. The approach taken is to consider the most accurate but yet most costly in computation time and hardware requirements. Tradeoffs are then considered in order to obtain a real-time correlator i.e., one which can compute the correlation surface at the rate of the incoming live video from the seeker. The effect of these trade-offs on correlation accuracy and other system performance criteria is given. A correlation algorithm is chosen and an implementation of this algorithm is given. An alternate implementation using an analog adder rather than a digital adder tree is recommended.

Subject Categories:

  • Helicopters
  • Guided Missiles
  • Optical Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE