(SLIIT, Faculty of Engineering, 2025-02) de Silva, Clarence W.
Real instruments, devices, and components are found to be nonlinear and are represented by
nonlinear analytical models. Accordingly, linear systems (or models) have idealized representations.
However, it is realized far more convenient to analyze, simulate, design, and implement nonlinear
devices through the use of linear models. Also, regarding some devices, the degree of nonlinearity may
not be significant. In such cases, nonlinear devices are often “approximated” by linear models. Against
that background, this paper explores several important methods of linearization of nonlinear physical
devices with practical examples.
