Adaptive optics with a new modal decomposition of actuator and sensor spaces

Author

Gibson, J.S. ; Chang, C.-C. ; Chen, Neil

Author_Institution

Dept. of Mech. & Aerosp. Eng., California Univ., Los Angeles, CA, USA

Volume

6

fYear

2001

fDate

2001

Firstpage

4619

Abstract

This paper introduces a new modal decomposition of actuator and sensor spaces for adaptive optics. The decomposition, which is based on the singular-value decomposition of the "poke matrix," provides orthonormal bases, or modes, for both actuator and sensor spaces. These modes are useful for design of the control loops, as well as for analysis of the wavefront error and the performance of the control loops. Simulation results are presented to illustrate the enhanced performance achieved by augmenting a classical adaptive optics loop with a truly adaptive control loop designed with the new modal decomposition

Keywords

actuators; adaptive control; adaptive optics; feedback; optical sensors; optical variables control; singular value decomposition; actuator spaces decomposition; adaptive control loop design; adaptive optics; classical adaptive optics loop; control loops; deformable mirrors; modal decomposition; orthonormal bases; orthonormal modes; poke matrix; sensor spaces decomposition; singular-value decomposition; turbulence-induced phase distortion compensation; wavefront -sensor measurements feedback; wavefront error; Actuators; Adaptive control; Adaptive filters; Adaptive optics; Lattices; Mechanical sensors; Mirrors; Optical filters; Optical sensors; Programmable control;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2001. Proceedings of the 2001

Conference_Location

Arlington, VA

ISSN

0743-1619

Print_ISBN

0-7803-6495-3

Type

conf

DOI

10.1109/ACC.2001.945708

Filename

945708