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Adaptive Attitude Control System for Space-Based Interceptor

Award Information

Department of Defense
Missile Defense Agency
Award ID:
Program Year/Program:
1992 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Coleman Research Corp.
5950 Lakehurst Drive Orlando, FL 32819
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 1992
Title: Adaptive Attitude Control System for Space-Based Interceptor
Agency / Branch: DOD / MDA
Contract: N/A
Award Amount: $48,894.00


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.

Principal Investigator:

Quang M. Lam

Business Contact:

Small Business Information at Submission:

Coleman Research Corp.
9302 Lee Highway, Suite 800 Fairfax, VA 22031

Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No