Share Email Print

Proceedings Paper

Algorithm development for real-time control of the airborne laser
Author(s): Michael W. Oppenheimer; Meir Pachter
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Two wave fronts are of interest in the AirBorne Laser, namely, the inbound wave front from the `beacon' and the outbound wave front of the high-energy laser. Since these two wave fronts propagate through different regions of the atmosphere and at different time instants, the spatial- temporal correlation between the Zernike polynomials' phase expansion coefficients representing these wave fronts must be determined. Using this correlation information, an underlying linear, stochastic, dynamical system that represents the atmosphere is identified. The wave front sensor and deformable mirror dynamics are also modeled. These models are then used in a Kalman filter which provides estimates of the outbound wave front's Zernike coefficients using measurements of the inbound wave front. A linear quadratic controller is also developed so that configuration, that is, atmospheric compensation, can be performed. The designed adaptive optics control system's performance is evaluated in a simulated experiment.

Paper Details

Date Published: 21 July 2000
PDF: 12 pages
Proc. SPIE 4034, Laser Weapons Technology, (21 July 2000); doi: 10.1117/12.391872
Show Author Affiliations
Michael W. Oppenheimer, Air Force Institute of Technology (United States)
Meir Pachter, Air Force Institute of Technology (United States)

Published in SPIE Proceedings Vol. 4034:
Laser Weapons Technology
Todd D. Steiner; Paul H. Merritt, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?