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Most physical systems are nonlinear and often time-varying. Constructing accurate models for nonlinear systems require specialized model structures that include their nonlinearities, whereas models of time-varying systems must include the time courses of the model's parameters. This contribution implements a technique in which the time dependence of the system's parameters are modeled by projecting...
The Hammerstein model is one of the simplest nonlinear system representations. It consists of a static nonlinear block in series with a dynamic linear block. This paper gives an identification method for time-varying Hammerstein systems: Hammerstein systems in which the parameters of the linear and nonlinear blocks vary as functions of time. The algorithm involves the expansion of the system's time-varying...
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