Accession Number:

ADA022714

Title:

Prospects for Precision Active Tracking using a Quadrant Detector.

Descriptive Note:

Technical memorandum,

Corporate Author:

JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB

Personal Author(s):

Report Date:

1976-01-01

Pagination or Media Count:

61.0

Abstract:

A general model is developed for an active quadrant tracking system constrained to track the nose or leading edge of incoming missiles and aircraft. The basic system consists of a shortpulse NdYAG 1.06-micrometer laser transmitter and a laser receiver with a quadrant avalanch photodiode detector in a direct detection mode. Using the model with carefully selected target, atmospheric, system, and detector parameters, estimates are made of the random tracking errors to be expected under various conditions. The conditions are noted under which tracking errors of 10 micro rad. maximum can be expected. Author

Subject Categories:

  • Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE