Modified maximum principle for non-linear open-loop PFM control systems
Shadia Elgazzar, Steve Onyshko · International Journal of Control · 1979
The problem of finding the optimum control function for pulse frequency modulated (PFM) control systems is considered in this paper. The modified maximum principle (MMP) is extended to cover non-linear open-loop systems. A method for obtaining the optimum control function is presented and illustrated by an example.