Adaptive Attitude Control System for Space-Based Interceptor

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$48,894.00
Award Year:
1992
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
18081
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Coleman Research Corp.
9302 Lee Highway, Suite 800, Fairfax, VA, 22031
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Quang M. Lam
(703) 934-7800
Business Contact:
() -
Research Institution:
n/a
Abstract
An adaptive attitude control system for a space-based interceptor will ameliorate the effects of torque disturbances when firing a divert thruster with the line of force offset from its center of mass. The adaptive control algorithm is based on a simplified version of a model reference adaptive control concept. It possesses two features: (i) more robust performance for the interceptor guidance and control system under the influence of dynamic variations without the need of a parameter estimate, and (ii) ease of implementation, which is attractive to the enhancement of the interceptor performance. The adaptive control law is then configured together with the traditional fixed-gain controller to yield an optimal, reliable, and more robust performance architecture. This architecture can be applied to not only SDIO applications but also to a wider class of nonlinear and linear systems whose parameters are time-varying such as: robotic control, control of flexible space structure process control, and advanced self-repairing flight control systems.

* information listed above is at the time of submission.

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