A new approach to parameter identification for nonlinear systems

In this paper a new approach to the problem of parameter identification for logistic-type systems is introduced in order to identify the qualitative characteristics of some given nonlinear systems. The method is applied to problems of importance in physics-plasma waves measured by two closely spaced satellites and the Korteweg–de Vries equation, and successful parameters estimation is demonstrated. The technique is based in a sequence of approximations which will produce a sequence of linear time-varying systems whose solutions converge to the solution of the original nonlinear system.