TIME RESPONSES AND PARAMETER ESTIMATION OF NONLINEAR CONTROL SYSTEMS.
SYLVANIA ELECTRONIC SYSTEMS-WEST MOUNTAIN VIEW CALIF ELECTRONIC DEFENSE LABS
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Control systems that include nonlinear devices such as limiters and relays with hysteresis are described by a set of first-order nonlinear differential equations. A Runge-Kutta integration method with special procedures to recognize discontinuities is then used to determine time responses using a digital computer. Results are presented for a nontrivial attitude-control system. Initial attempts of estimating parameters for this system using iterative minimization procedures were only partially successful. The difficulties encountered are discussed. Author
- Operations Research
- Unmanned Spacecraft