College of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China

A method utilizing single channel recordings to blind separate the multicomponents overlapped in both time and frequency domains is proposed in this paper. The main idea of the method is based on using the energy operator and differential energy operator to estimate instantaneous frequencies and amplitudes of each component and then to reconstruct these components. This method, due to the good time resolution of the energy operator and differential energy operator, as well as the very low computational complexity, is very useful in real time processing and practical applications. Simulation results demonstrated the efficiency of this method.

This work was supported by the National Key Laboratory Foundation of Communications System Control of China (Grant No. 9140C1301020801).