ROBUST NONLINEAR CONTROL DESIGNS FOR COMPLEX DYNAMIC SYSTEM

Award Information
Agency: National Science Foundation
Branch: N/A
Contract: N/A
Agency Tracking Number: 27370
Amount: $64,938.00
Phase: Phase I
Program: SBIR
Awards Year: 1994
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
20954 Bryant St Ste 6, Canoga Park, CA, 91306
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Ching-fang Lin
 (818) 407-0092
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THE NONLINEARITIES AND UNCERTAINTIES INHERENT IN COMPLEX DYNAMIC SYSTEMS, SUCH AS THE DEVELOPMENT OF AUTOPILOT SYSTEMS FOR AIRCRAFT, IMPOSE GREAT CHALLENGES TO LINEAR CONTROL SYSTEMS DESIGN. SEVERAL ADVANCED ROBUST NONLINEAR APPROACHES, NAMELY, NONLINEAR H-INFINITY, INVERSION-BASED CONTROL LAWS, ANALYTICAL GAIN SCHEDULING, AND NONLINEAR SERVOMECHANISM DESIGN ARE BEING USED TO DESIGN A HIGH PERFORMANCE AUTOPILOT. THE UNIQUE FEATURES OF THESE APPROACHES INCLUDE INCORPORATION OF NONLINEAR DYNAMICS INTO THE DESIGN PROCESS; PROVISION FOR ROBUST SCHEMES TO ACCOUNT FOR MODEL UNCERTAINTIES; AND UTILIZATION OF ADAPTIVE MECHANISMS TO HANDLE PARAMETER VARIATIONS. THESE FEATURES SYNERGISTICALLY YIELD A CONTROL SYSTEM WITH A LARGER OPERATION RANGE, INCREASED ROBUSTNESS TO PARAMETRIC VARIATIONS, FASTER RESPONSE SPEED, AND MORE ACCURATE TRACKING CAPABILITIES, THEREBY ENHANCING THE OVERALL SYSTEM PERFORMANCE. THE DELIVERABLES INCLUDE A COMPREHENSIVE NONLINEAR DESIGN/ANALYSIS TOOL TOGETHER WITH DETAILED DOCUMENTATION.

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

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