Accession Number : ADA329969

Title :   PAT Jitter Stabilization

Descriptive Note : Final rept. Dec 94-95

Corporate Author : CALSPAN UB RESEARCH CENTER BUFFALO NY

Personal Author(s) : Skormin, Victor A.

PDF Url : ADA329969

Report Date : MAY 1997

Pagination or Media Count : 69

Abstract : This report contains the results of our efforts in providing both theoretical and experimental information on selection of control systems for stabilizing optical beams used as signal carriers in communications systems, with the major system goal being high speed inter-satellite links. The work described here applies advanced control techniques to improving the dynamic performance of a fast steering mirror in the presence of platform vibration; the response of the mirror was analyzed, revealing the existence of cross channel coupling resulting from mechanical bending modes. The model reference control approach was then employed in designing an adaptive modification of the existing control system, and the results experimentally verified using the PAT test bed at Rome Laboratory.

Descriptors :   *BEAM STEERING, *LASER COMMUNICATIONS, *JITTER, SIGNAL PROCESSING, COMPUTERIZED SIMULATION, ADAPTIVE CONTROL SYSTEMS, LASER BEAMS, SATELLITE COMMUNICATIONS, DATA LINKS, COMMUNICATION SATELLITES, LASER TRACKING, LASER MIRRORS.

Subject Categories : Non-radio Communications
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE