Point-ahead mechanism for ETS-VI optical ISL experiment

Details Point-ahead mechanism for ETS-VI optical ISL experiment Point-ahead mechanism for ETS-VI optical ISL experiment

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1218..646s&link_type=abstract

IN: Free-space laser communication technologies II; Proceedings of the Meeting, Los Angeles, CA, Jan. 15-17, 1990 (A91-22776 08-

Physics

Optics

Laser Beams, Light Transmission, Optical Communication, Satellite Attitude Control, Satellite Communication, Spacecraft Instruments, Actuators, Block Diagrams, Feedback Control, High Resolution, Piezoelectric Transducers

Scientific paper

An offset feedback-type point-ahead method is described and its application to the Engineering Test Satellite VI (ETS-VI) laser communication equipment (LCE) is examined. The role in the method of a high-resolution mirror-deflection mechanism driven by a multilayered piezoelectric actuator is pointed out. The pointing resolution using the method is estimated to be less than 1 microrad at the output of the transmitting optics, which is sufficient of the LCE experiment.

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