w0fc: Plateau omega0 and corner frequency are are now taken as the median of previously calculated values from different functions synthsourcespek and fitSourceModel.

This commit is contained in:
Ludger Küperkoch 2015-11-30 13:27:08 +01:00
parent 957d2ccfe7
commit 466e0020a6

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@ -6,6 +6,7 @@ Created August/September 2015.
:author: Ludger Küperkoch / MAGS2 EP3 working group
"""
import pdb
import matplotlib.pyplot as plt
import numpy as np
from obspy.core import Stream
@ -181,17 +182,15 @@ class w0fc(Magnitude):
# where spectral level reached 50% of flat level
iin = np.where(YY >= 0.5 * w0in)
Fcin = F[iin[0][np.size(iin) - 1]]
# use of implicit scipy function
# use of implicit scipy otimization function
fit = synthsourcespec(F, w0in, Fcin)
[optspecfit, pcov] = curve_fit(synthsourcespec, F, YY.real, [w0in, Fcin])
self.w01 = optspecfit[0]
self.fc1 = optspecfit[1]
w01 = optspecfit[0]
fc1 = optspecfit[1]
print ("w0fc: Determined w0-value: %e m/Hz, \n"
"Determined corner frequency: %f Hz" % (self.w01, self.fc1))
"Determined corner frequency: %f Hz" % (w01, fc1))
# use of conventional fitting
[self.w02, self.fc2] = fitSourceModel(F, YY.real, Fcin, self.getiplot())
if self.getiplot() > 1:
f1 = plt.figure()
plt.subplot(2,1,1)
@ -216,6 +215,14 @@ class w0fc(Magnitude):
raw_input()
plt.close(f1)
# use of conventional fitting
[w02, fc2] = fitSourceModel(F, YY.real, Fcin, self.getiplot())
# get w0 and fc as median
self.w0 = np.median([w01, w02])
self.fc = np.median([fc1, fc2])
print("w0fc: Using w0-value = %e m/Hz and fc = %f Hz" % (self.w0, self.fc))
def synthsourcespec(f, omega0, fcorner):
'''