Fourier coefficients (periodogram).

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Presentation transcript:

Fourier coefficients (periodogram)

N=1512

Autocorrelation Method Autocovariance Autocorrelation L is the lags N is total # of lags One-sided power spectral density function

Blackman -Tukey spectrum (‘spa’ function in Matlab)

m/s 8 measurements/sec seconds

Hz Power Spectral Density FFT Power Spectral Density Hz Periodogram

Autoregressive Yule-Walker FFT Power Spectral Density Hz Power Spectral Density Hz Autoregressive Yule-Walker Autoregressive Burg

Autoregressive Yule-Walker FFT Power Spectral Density Periodogram Autoregressive Burg Autoregressive Yule-Walker Hz

Calculation and plot by J.F. Paniagua

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