Self coupled harmonics offer a practical means for testing presence of nonlinearities. A computationally attractive method to detect frequency and phase coupling is derived based on a slice of the Fourier Series moment polyspectrum, and is capable of handling constant amplitude harmonics as well as harmonics observed in additive and nonzero mean multiplicative noise. The zero-mean case is addressed using cyclic statistics, and contrary to existing approaches, both methods rely on a single record of data and do not assume the additive noise to be Gaussian.
|Original language||English (US)|
|Journal||ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings|
|State||Published - 1994|
|Event||Proceedings of the 1994 IEEE International Conference on Acoustics, Speech and Signal Processing. Part 2 (of 6) - Adelaide, Aust|
Duration: Apr 19 1994 → Apr 22 1994
Bibliographical noteFunding Information:
This work was supported by ONR Grant N0014-93-1-0485.
© 1994 IEEE.
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