Algorithm development for real-time control of the airborne laser

Michael W. Oppenheimer; Meir Pachter

doi:10.1117/12.391872

21 July 2000 Algorithm development for real-time control of the airborne laser

Michael W. Oppenheimer, Meir Pachter

Proceedings Volume 4034, Laser Weapons Technology; (2000) https://doi.org/10.1117/12.391872
Event: AeroSense 2000, 2000, Orlando, FL, United States

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.

Citation Download Citation

Michael W. Oppenheimer and Meir Pachter "Algorithm development for real-time control of the airborne laser", Proc. SPIE 4034, Laser Weapons Technology, (21 July 2000); https://doi.org/10.1117/12.391872

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