def show_fids(fids,
data_dir,
data_viewer,
prefix='',
flip_angle=None,
weighting=False):
for ds in fids:
fid_filepath = os.path.join(data_dir, ds['data'])
fid = load(fid_filepath)
fid_cutted = cut_fid(fid)
if weighting:
fid['fid'] = weight_signal(fid.index,
fid['fid'],
lb=FID_EXP_WEIGHTING)
fid_cutted['fid'] = weight_signal(fid_cutted.index,
fid_cutted['fid'],
lb=FID_EXP_WEIGHTING)
electronic_gain_factor = 10**(-ds['gain'] / 20.)
small_flip_angle_factor = 1 / np.sin(np.radians(flip_angle))
fid *= electronic_gain_factor
fid *= small_flip_angle_factor
fid_cutted *= electronic_gain_factor
fid_cutted *= small_flip_angle_factor
data_viewer.add_object(fid, '{}{} FID'.format(prefix, ds['data']))
data_viewer.add_object(fid_cutted,
'{}{} FID (cut)'.format(prefix, ds['data']))
def process_water_fid(water_fid, data_dir, weighting=False):
fid_filepath = os.path.join(data_dir, water_fid['data'])
fid = load(fid_filepath)
fid_cutted = fid[1350:]
if weighting:
fid['fid'] = weight_signal(fid.index, fid['fid'], lb=FID_EXP_WEIGHTING)
fid_cutted['fid'] = weight_signal(fid_cutted.index,
fid_cutted['fid'],
lb=FID_EXP_WEIGHTING)
electronic_gain_factor = 10**(-water_fid['gain'] / 20.)
fid *= electronic_gain_factor
fid_cutted *= electronic_gain_factor
fid *= WATER_SIGNAL_CORRECTION_FACTOR
fid_cutted *= WATER_SIGNAL_CORRECTION_FACTOR
return (fid, fid_cutted)
def show_fts(fids,
data_dir,
data_viewer,
prefix='',
flip_angle=None,
auto_pc=False,
weighting=False):
for ds in fids:
fid_filepath = os.path.join(data_dir, ds['data'])
fid = load(fid_filepath)
fid = cut_fid(fid)
fid *= 10**(-ds['gain'] / 20.)
fid *= 1 / np.sin(np.radians(flip_angle))
if weighting:
fid['fid'] = weight_signal(fid.index,
fid['fid'],
lb=FID_EXP_WEIGHTING)
ft = cut_fft(do_fft(fid))
if auto_pc:
pc_angle, ft['fft'] = auto_phase_correct(ft['fft'],
ft.index,
step=1.)
else:
pc_angle = ds['pc']
ft['fft'] = phase_correct(ft['fft'], angle=ds['pc'])
data_viewer.add_object(
ft, '{}{} FT (pc={})'.format(prefix, ds['data'], pc_angle))
def compute(fids, data_dir, pc=False, weighting=False, arg='index'):
values = []
arguments = []
res = 0.
idx = 0
for ds in fids:
fid_filepath = os.path.join(data_dir, ds['data'])
fid = cut_fid(load(fid_filepath))
if weighting:
fid['fid'] = weight_signal(fid.index, fid['fid'],
lb=FID_EXP_WEIGHTING)
ft = cut_fft(do_fft(fid))
if pc:
ft['fft'] = auto_phase_correct(ft['fft'], ft.index,
step=3.)[1]
res = integrate.simps(np.real(ft['fft']), ft.index)
else:
res = integrate.simps(np.abs(ft['fft']), ft.index)
res *= 10 ** (-ds['gain'] / 20.)
values.append(res)
if arg == 'index':
arguments.append(idx)
idx += 1
else:
arguments.append(ds[arg])
return pd.DataFrame(values, columns=['Pol'], index=arguments)
def compute(fids, data_dir, pc=False, weighting=False, arg='index'):
values = []
arguments = []
res = 0.
idx = 0
for ds in fids:
fid_filepath = os.path.join(data_dir, ds['data'])
fid = cut_fid(load(fid_filepath))
if weighting:
fid['fid'] = weight_signal(fid.index,
fid['fid'],
lb=FID_EXP_WEIGHTING)
ft = cut_fft(do_fft(fid))
if pc:
ft['fft'] = auto_phase_correct(ft['fft'], ft.index, step=3.)[1]
res = integrate.simps(np.real(ft['fft']), ft.index)
else:
res = integrate.simps(np.abs(ft['fft']), ft.index)
res *= 10**(-ds['gain'] / 20.)
values.append(res)
if arg == 'index':
arguments.append(idx)
idx += 1
else:
arguments.append(ds[arg])
return pd.DataFrame(values, columns=['Pol'], index=arguments)
def process_water_fid(water_fid, data_dir, weighting=False):
fid_filepath = os.path.join(data_dir, water_fid['data'])
fid = load(fid_filepath)
fid_cutted = fid[1350:]
if weighting:
fid['fid'] = weight_signal(fid.index, fid['fid'],
lb=FID_EXP_WEIGHTING)
fid_cutted['fid'] = weight_signal(fid_cutted.index,
fid_cutted['fid'],
lb=FID_EXP_WEIGHTING)
electronic_gain_factor = 10 ** (-water_fid['gain'] / 20.)
fid *= electronic_gain_factor
fid_cutted *= electronic_gain_factor
fid *= WATER_SIGNAL_CORRECTION_FACTOR
fid_cutted *= WATER_SIGNAL_CORRECTION_FACTOR
return (fid, fid_cutted)
def show_fids(fids, data_dir, data_viewer, prefix='',
weighting=False):
for ds in fids:
fid_filepath = os.path.join(data_dir, ds['data'])
fid = load(fid_filepath)
fid_cutted = cut_fid(fid)
if weighting:
fid['fid'] = weight_signal(fid.index, fid['fid'],
lb=FID_EXP_WEIGHTING)
fid_cutted['fid'] = weight_signal(fid_cutted.index,
fid_cutted['fid'],
lb=FID_EXP_WEIGHTING)
electronic_gain_factor = 10 ** (-ds['gain'] / 20.)
fid *= electronic_gain_factor
fid_cutted *= electronic_gain_factor
data_viewer.add_object(fid, '{}{} FID'
.format(prefix, ds['data']))
data_viewer.add_object(fid_cutted, '{}{} FID (cut)'
.format(prefix, ds['data']))
def show_fts(fids, data_dir, data_viewer,
pc=False, prefix='', weighting=False):
for ds in fids:
fid_filepath = os.path.join(data_dir, ds['data'])
fid = cut_fid(load(fid_filepath))
if weighting:
fid['fid'] = weight_signal(fid.index, fid['fid'],
lb=FID_EXP_WEIGHTING)
electronic_gain_factor = 10 ** (-ds['gain'] / 20.)
fid *= electronic_gain_factor
ft = cut_fft(do_fft(fid))
if pc:
ft['fft'] = auto_phase_correct(ft['fft'], ft.index,
step=1.)[1]
data_viewer.add_object(ft, '{}{} FT'.format(prefix, ds['data']))
def show_fts(fids,
data_dir,
data_viewer,
pc=False,
prefix='',
weighting=False):
for ds in fids:
fid_filepath = os.path.join(data_dir, ds['data'])
fid = cut_fid(load(fid_filepath))
if weighting:
fid['fid'] = weight_signal(fid.index,
fid['fid'],
lb=FID_EXP_WEIGHTING)
electronic_gain_factor = 10**(-ds['gain'] / 20.)
fid *= electronic_gain_factor
ft = cut_fft(do_fft(fid))
if pc:
ft['fft'] = auto_phase_correct(ft['fft'], ft.index, step=1.)[1]
data_viewer.add_object(ft, '{}{} FT'.format(prefix, ds['data']))
def compute_mwdep(fids, data_dir, pc=False, weighting=False):
values = []
arguments = []
res = 0.
for ds in fids:
fid_filepath = os.path.join(data_dir, ds['data'])
fid = cut_fid(load(fid_filepath))
if weighting:
fid['fid'] = weight_signal(fid.index, fid['fid'], lb=5)
ft = cut_fft(do_fft(fid))
if pc:
ft['fft'] = auto_phase_correct(ft['fft'], ft.index, step=1.)[1]
res = integrate.simps(np.real(ft['fft']), ft.index)
else:
res = integrate.simps(np.abs(ft['fft']), ft.index)
res *= 10**(-ds['gain'] / 20.)
values.append(res)
arguments.append(np.sqrt(ds['P']))
return pd.DataFrame(values, columns=['Pol'], index=arguments)
def compute_pol(data_dir, fids, flip_angle=None, pc=False, weighting=False):
values = []
time = []
for ds in fids:
fid_filepath = os.path.join(data_dir, ds['data'])
fid = cut_fid(load(fid_filepath))
if weighting:
fid['fid'] = weight_signal(fid.index,
fid['fid'],
lb=FID_EXP_WEIGHTING)
ft = cut_fft(do_fft(fid))
if pc:
ft['fft'] = auto_phase_correct(ft['fft'], ft.index, step=1.)[1]
ft['fft'] = np.real(ft['fft'])
res = integrate.simps(ft['fft'], ft.index)
res *= 10**(-ds['gain'] / 20.)
res *= 1 / np.sin(np.radians(flip_angle))
values.append(res)
time.append(ds['t'])
return pd.DataFrame(values, columns=['P'], index=time)
def compute_mwdep(fids, data_dir, pc=False, weighting=False):
values = []
arguments = []
res = 0.
for ds in fids:
fid_filepath = os.path.join(data_dir, ds['data'])
fid = cut_fid(load(fid_filepath))
if weighting:
fid['fid'] = weight_signal(fid.index, fid['fid'], lb=5)
ft = cut_fft(do_fft(fid))
if pc:
ft['fft'] = auto_phase_correct(ft['fft'], ft.index,
step=1.)[1]
res = integrate.simps(np.real(ft['fft']), ft.index)
else:
res = integrate.simps(np.abs(ft['fft']), ft.index)
res *= 10 ** (-ds['gain'] / 20.)
values.append(res)
arguments.append(np.sqrt(ds['P']))
return pd.DataFrame(values, columns=['Pol'], index=arguments)
def show_fts(fids, data_dir, data_viewer, prefix='',
flip_angle=None, auto_pc=False, weighting=False):
for ds in fids:
fid_filepath = os.path.join(data_dir, ds['data'])
fid = load(fid_filepath)
fid = cut_fid(fid)
fid *= 10 ** (-ds['gain'] / 20.)
fid *= 1 / np.sin(np.radians(flip_angle))
if weighting:
fid['fid'] = weight_signal(fid.index, fid['fid'],
lb=FID_EXP_WEIGHTING)
ft = cut_fft(do_fft(fid))
if auto_pc:
pc_angle, ft['fft'] = auto_phase_correct(
ft['fft'], ft.index, step=1.)
else:
pc_angle = ds['pc']
ft['fft'] = phase_correct(ft['fft'], angle=ds['pc'])
data_viewer.add_object(ft, '{}{} FT (pc={})'
.format(prefix, ds['data'], pc_angle))
def compute_pol(data_dir, fids, flip_angle=None, pc=False, weighting=False):
values = []
time = []
for ds in fids:
fid_filepath = os.path.join(data_dir, ds['data'])
fid = cut_fid(load(fid_filepath))
if weighting:
fid['fid'] = weight_signal(fid.index, fid['fid'],
lb=FID_EXP_WEIGHTING)
ft = cut_fft(do_fft(fid))
if pc:
ft['fft'] = auto_phase_correct(ft['fft'], ft.index,
step=1.)[1]
ft['fft'] = np.real(ft['fft'])
res = integrate.simps(ft['fft'], ft.index)
res *= 10 ** (-ds['gain'] / 20.)
res *= 1 / np.sin(np.radians(flip_angle))
values.append(res)
time.append(ds['t'])
return pd.DataFrame(values, columns=['P'], index=time)
fid *= electronic_gain_factor
fid *= small_flip_angle_factor
fid_cutted *= electronic_gain_factor
fid_cutted *= small_flip_angle_factor
data_viewer.add_object(fid, '{}{} FID'.format(prefix, ds['data']))
data_viewer.add_object(fid_cutted,
'{}{} FID (cut)'.format(prefix, ds['data']))
if __name__ == '__main__':
common.configure_logging()
dv = data_viewer()
fid_file = 'ise14.dat'
fid = load(os.path.join(data2013_dir, fid_file))
fid['fid'] = weight_signal(fid.index, fid['fid'], lb=FID_EXP_WEIGHTING)
dv.add_object(fid, 'FID: ' + os.path.basename(fid_file))
fid_cutted = cut_fid(fid)
dv.add_object(fid_cutted, 'FID[50:]: ' + os.path.basename(fid_file))
ft = do_fft(fid_cutted)
ft_cut = cut_fft(ft)
dv.add_object(ft_cut, "FFT cut: " + os.path.basename(fid_file))
theta, ft_phase_corrected = auto_phase_correct(ft_cut['fft'],
ft_cut.index,
step=0.5)
integr = integrate.simps(np.imag(ft_phase_corrected), ft_cut.index)
df_pc = pd.DataFrame(ft_phase_corrected,
index=ft_cut.index,
columns=['fft'])
dv.add_object(df_pc, 'sample, pc={}, I(Im)={}'.format(theta, integr))
fid *= small_flip_angle_factor
fid_cutted *= electronic_gain_factor
fid_cutted *= small_flip_angle_factor
data_viewer.add_object(fid, '{}{} FID'
.format(prefix, ds['data']))
data_viewer.add_object(fid_cutted, '{}{} FID (cut)'
.format(prefix, ds['data']))
if __name__ == '__main__':
common.configure_logging()
dv = data_viewer()
fid_file = 'ise14.dat'
fid = load(os.path.join(data2013_dir, fid_file))
fid['fid'] = weight_signal(fid.index, fid['fid'], lb=FID_EXP_WEIGHTING)
dv.add_object(fid, 'FID: ' + os.path.basename(fid_file))
fid_cutted = cut_fid(fid)
dv.add_object(fid_cutted, 'FID[50:]: ' + os.path.basename(fid_file))
ft = do_fft(fid_cutted)
ft_cut = cut_fft(ft)
dv.add_object(ft_cut, "FFT cut: " + os.path.basename(fid_file))
theta, ft_phase_corrected = auto_phase_correct(
ft_cut['fft'], ft_cut.index, step=0.5)
integr = integrate.simps(np.imag(ft_phase_corrected),
ft_cut.index)
df_pc = pd.DataFrame(ft_phase_corrected, index=ft_cut.index,
columns=['fft'])
dv.add_object(df_pc, 'sample, pc={}, I(Im)={}'
.format(theta, integr))
