Analysis of nonlinear sampled-data control systems - II

GENERAL METHODS of numerical analysis are developed in a previous paper1 for nonlinear sampled-data control systems in which the nonlinearity effectively occurs before the linear frequency-sensitive elements in the sampled error channel. These methods are inadequate if the system nonlinearity effectively occurs between two linear frequency-sensitive elements, as shown in Fig. 1. This paper extends the application of numerical analysis to this more complex problem. The resulting methods no longer lead to an exact solution.