Title :
Time-domain approaches to quadratic phase coupling estimation
Author_Institution :
Dept. of Electr. Eng., Rochester Inst. of Technol., NY, USA
fDate :
1/1/1990 12:00:00 AM
Abstract :
Bicoherence is a quantity used to estimate the contribution of second-order nonlinearity to the power in bifrequencies. The conventional approach to the problem uses second- and third-order periodograms for bicoherence estimation. Time-domain approaches that use autocorrelation and third-order cumulant samples or their estimates are developed. These techniques are suitable for use in situations where high-resolution approaches are required for power spectrum and bispectrum estimation
Keywords :
Fourier transforms; estimation theory; signal processing; spectral analysis; Fourier transforms; autocorrelation; bicoherence; bifrequencies; bispectrum estimation; power spectrum estimation; quadratic phase coupling estimation; second-order nonlinearity; signal processing; spectral analysis; third-order cumulant samples; time-domain method; Autocorrelation; Couplings; Frequency estimation; Parametric statistics; Phase estimation; Power generation; Signal generators; Signal resolution; Spectral analysis; Time domain analysis;
Journal_Title :
Automatic Control, IEEE Transactions on
