obspy.signal.tf_misfit.cwt
- cwt(st, dt, w0, fmin, fmax, nf=100, wl='morlet')[source]
Continuous Wavelet Transformation in the Frequency Domain.
See also
[Kristekova2006], eq. (4)
- Parameters:
st – time dependent signal.
dt – time step between two samples in st (in seconds)
w0 – parameter for the wavelet, tradeoff between time and frequency resolution
fmin – minimum frequency (in Hz)
fmax – maximum frequency (in Hz)
nf – number of logarithmically spaced frequencies between fmin and fmax
wl – wavelet to use, for now only ‘morlet’ is implemented
- Returns:
time frequency representation of st, type numpy.ndarray of complex values, shape = (nf, len(st)).