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Stable High Bandwidth AO Control with physical DM constraints

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9451-18-P-0254
Agency Tracking Number: F18A-008-0178
Amount: $149,996.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: AF18A-T008
Solicitation Number: 2018.0
Solicitation Year: 2018
Award Year: 2018
Award Start Date (Proposal Award Date): 2018-07-20
Award End Date (Contract End Date): 2019-07-20
Small Business Information
1501 S. Sunset St.
Longmont, CO 80501
United States
DUNS: 079204036
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Troy Rhoadarmer
 (720) 684-8069
Business Contact
 Aaron Buckner
Phone: (310) 435-5492
Research Institution
 University of California Los Angeles
 Brian Roe
UCLA Mechanical and Aerospace Engineering Department BOX 951597, 48-121 E4
Los Angeles, CA 90095
United States

 (310) 983-3408
 Nonprofit College or University

Adaptive optics (AO) system performance is hindered by the mechanical limits of the deformable mirror (DM), namely stroke limits, interactuator stroke limits, and mechanical resonance.The nature of the multi-in multi-out (MIMO) control system does not lend itself well to notch filters to combat the mechanical resonances, and the stroke limits introduce non-linearities to the system.The traditional method of ensuring stable AO performance is to provide sufficient gain margin (i.e. reduce the AO system bandwidth).Guidestar and UCLA are proposing a novel method of spatial filtering of the phase errors combined with innovative model predictive controllers and multi-channel adaptive filtering to optimize the control bandwidth within a spatial frequency domain.

* Information listed above is at the time of submission. *

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