Bifrequency characterization of linear time-varying systems

Abstract

This paper presents a summary in the development of a bifrequency theory for the class of single-input single-output (SISO) linear time-varying (LTV) systems based on the classical two-dimensional Laplace transform (2DLT). The theory is a natural extension of the conventional operational calculus for multivariable functions and systems. Applications of the proposed theory are illustrated by examples, which indicate that the bifrequency characterization of LTV systems is the most powerful technique for the analysis and design of dynamic systems.