The Volterra Series and its Application

Modeling of weakly nonlinear systems by means of Volterra series analysis is presented.

Necessary conditions for representing nonlinearities by a Volterra series are developed analytically as well as heuristically.

A two-condition convergence criterion for Volterra series and a method for determining Volterra transfer functions are established.

For systems with multiple nodes, an extension of Volterra series analysis; method of nonlinear currents is developed and applied to a MESFET amplifier.

Finally, methods of quantifying nonlinear behavior are discussed.