timescales.autoreg.compute_ar_spectrum

timescales.autoreg.compute_ar_spectrum(sig, fs, order, f_range=None, method='burg', nfft=4096, n_jobs=1)

Compute an autoregressive power spectrum.

Parameters

sig1d or 2d array

Voltage time series.

fsfloat

Sampling rate, in Hz.

orderint

Number of autogressive coefficients to fit.

f_rangetuple

Lower and upper frequency bounds.

methodstr, {‘burg’, ‘yule_walker’}

Coefficient estimation method.

nfftint, optional, default: 4096

Window length.

n_jobsoptional, int, default: 1

Number of jobs to run in parallel.

Returns

freqs1d array

Frequency definitions.

powers1d array

Power values.