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A new approach to time-frequency signal decomposition

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2 Author(s)
F. Hlawatsch ; Inst. fuer Nachrichtentechnik und Hochfrequenztechnik, Tech. Univ. Wien, Austria ; W. Krattenthaler

A recently developed method for separating time-frequency disjoint signal components is based on the Wigner distribution (WD) and uses a time-frequency masking procedure followed by a signal synthesis step. A problem with this method is that the positioning of the time-frequency masks is done manually and can be difficult due to WD interference terms. Also, masking is ineffective if a WD interference term overlaps with the WD signal term to be isolated. The authors present an approach to time-frequency signal decomposition which uses an extended version of signal synthesis and does not require a masking procedure

Published in:

Circuits and Systems, 1989., IEEE International Symposium on

Date of Conference:

8-11 May 1989