High Bandwidth Fast Steering Mirror

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$1,749,420.00
Award Year:
2006
Program:
SBIR
Phase:
Phase II
Contract:
HQ0006-06-C-7303
Agency Tracking Number:
044-1220
Solicitation Year:
2004
Solicitation Topic Code:
MDA04-109
Solicitation Number:
2004.4
Small Business Information
APPLIED TECHNOLOGY ASSOC.
1300 Britt SE, Albuquerque, NM, 87123
Hubzone Owned:
N
Socially and Economically Disadvantaged:
Y
Woman Owned:
N
Duns:
081475873
Principal Investigator:
Felix Morgan
Engineering Fellow
(505) 767-1275
morgan@aptec.com
Business Contact:
Jeffrey Stein
Director Finance, Contrac
(505) 767-1231
stein@aptec.com
Research Institution:
n/a
Abstract
As the Airborne Laser (ABL) comes closer to directing a high energy laser (HEL) at a boosting missile target, it is essential that higher bandwidth fast steering mirrors (FSMs) need to be developed. These FSMs must be capable of controlling large 12-inch mirrors while handling the HEL power levels. Unfortunately, it is unlikely that a FSM mechanism (substrate and mounting structure) can be designed and built to have structural frequencies high enough to provide a 2 KHz open-loop bandwidth using conventional control algorithms as this would require structural frequencies on the order of 6-10 KHz. Applied Technology Associates proposes to provide the Missile Defense Agency innovative, adaptive mirror control concepts for high bandwidth (2 KHz) fast steering mirrors that can accommodate lower mirror structural frequencies. A Model Reference Adaptive Filter approach is the leading candidate for accomplishing this. In this concept, an ideal plant response is designated the model. Then a real-time adaptive filter is included in the control loop of the plant such that its filtered response matches the model. This technique automatically identifies and compensates for structural resonances, and furthermore can adapt if those characteristics change over time. Alternate advanced control concepts will also be investigated.

* information listed above is at the time of submission.

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