MONO-COMPONENTS VS IMFS IN SIGNAL DECOMPOSITION

The concepts of intrinsic mode functions and mono-components are investigated in rela-tion to the empirical mode decomposition. Mono-components are defined to be the functions for which non-negative analytic instantaneous frequency is well defined. We show that a great variety of functions are mono-components based on which adaptive decomposition of signals are theoretically possible. We justify the role of empirical mode decomposition in signal decomposition in relation to mono-components