arim.signal

Module for signal processing.

Abs()	Returns the absolute value of a signal.
ButterworthBandpass(order, cutoff_min, ...)	Butterworth bandpass filter.
ComposedFilter(outer_filters, inner_filters)	Composed filter.
Filter()	Abstract filter.
Gaussian(nsamples, centre_freq, ...[, ...])	Gaussian Filter - As applied in BRAIN BUT default is zero outside of filter region, BRAIN is not.
Hanning(nsamples, centre_freq, ...)	Hanning Filter - Apply the Hann function.
Hilbert()	Returns the analytical signal, i.e. signal + i * hilbert_signal where hilbert_signal is the Hilbert transform of signal.
NoFilter()	A filter that does nothing (return data unchanged).
rfft_to_hilbert(xf, n[, axis])	Convert the Fourier transform of a real signal to the analytic signal.
timeshift_spectra(unshifted_x, delays, ...)	Time-shift spectra in frequency domain