obspy.signal.array_analysis.array_transff_freqslowness

array_transff_freqslowness(coords, slim, sstep, fmin, fmax, fstep, coordsys='lonlat')

Returns array transfer function as a function of slowness difference and frequency.

Parameters

• coords (numpy.ndarray) – coordinates of stations in longitude and latitude in degrees elevation in km, or x, y, z in km

• coordsys (str) – valid values: ‘lonlat’ and ‘xy’, choose which coordinates to use

• slim – either a float to use symmetric limits for slowness differences or the tupel (sxmin, sxmax, symin, symax)

• fmin (float) – minimum frequency in signal

• fmin – maximum frequency in signal

• fmin – frequency sample distance