Abstract
Novel time-frequency techniques are proposed: the short time instantaneous higher-order spectra (HOS) with adjustment to measured or known a priori time variation of the instantaneous frequency of transient signals. It is shown that the proposed transforms are more effective than the non-instantaneous HOS (i.e. without adjustment to time variation of the instantaneous frequency) in recognizing a non-stationary nonlinearity.
Original language | English |
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Pages (from-to) | 178-187 |
Number of pages | 10 |
Journal | International Journal of Adaptive Control and Signal Processing |
Volume | 24 |
Issue number | 3 |
Early online date | 26 Nov 2008 |
DOIs | |
Publication status | Published - 1 Mar 2010 |
Externally published | Yes |