Abstract

We extend and generalize the Teager–Kaiser [in Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (1993), Vol. 3, p. 149 ] and the higher-order differential energy operators [IEEE Signal Process. Lett. 2, 152 (1995) ] to a large class of operators called higher-order energy operators. We show that for AM-FM signal demodulation, the introduced partial derivative orders have to satisfy certain conditions. These operators are parameterized for local processing of AM-FM signals. The operators are illustrated using synthetic signals and a real signal from light scanning interferometry.

© 2007 Optical Society of America

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