def read_cresis_mat(matfile):
""" Read in a CRESIS Antarctica/Greenland MATLAB datafile as a
`CommonOffsetGather`. """
C = scipy.io.loadmat(matfile)
R = RecordList(None)
R.lats = C['Latitude']
R.lons = C['Longitude']
R.timestamps = C['GPS_time']
R.sample_rate = 1.0 / np.diff(C['Time'][0]).mean() * np.ones(C['Data'].shape[0])
return CommonOffsetGather(C['Data'], line=0, metadata=R)
def read_pEKKO_as_gather(fstem):
lmeta, tmeta, darray = read_pulseEKKO(fstem)
metadata = RecordList(None)
smple_rate = float(lmeta.get("NOMINAL FREQUENCY", np.nan))
metadata.sample_rate = [smple_rate for i in range(len(tmeta))]
return CommonOffsetGather(darray, line=0, metadata=metadata)
