Accession Number : ADA331936

Title :   Application of the Model Reference Approach in Laser Beam Steering Systems

Descriptive Note : Final technical rept. Jun 96-May 97

Corporate Author : ADVANCED TECHNICAL CONCEPTS BERKSHIRE NY

Personal Author(s) : Skormin, Victor A.

PDF Url : ADA331936

Report Date : OCT 1997

Pagination or Media Count : 81

Abstract : A model reference control system has been developed to adaptively control the pointing function of a "Pointing, Acquisition and Tracking" system in a satellite-based Laser Communication system. This approach allows the description of the system transfer behavior to be defined in software, and the behavior of the real system to be driven to this software model. The consequence is the isolation of the real, transient and wear affected system from the ideal, modeled system performance, allowing the "forcing function" of the controller to correct for transients (e.g. platform jitter) and for long term effects of wear and operational conditions. The use of this technique in compensating for bending modes in less expensive optical mirror systems has been experimentally demonstrated. The consequence of using this improved pointing accuracy and the associated improvement in burst error performance to allow transient control of output carrier power is suggested as a means of enhancing system reliability.

Descriptors :   *LASER BEAMS, *BEAM STEERING, SOFTWARE ENGINEERING, SATELLITE COMMUNICATIONS, LASER COMMUNICATIONS.

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE