Esempio n. 1
0


#%% multi-channel synthetic data
''' multi-channel synthetic data (clean) '''
s0 = np.array(pd.read_csv("data/syn_data.csv", header=None))
#fig, ax = plt.subplots(figsize=(10,8))
#ax.imshow(s1,interpolation='quadric', aspect='auto',vmax=0.2,vmin=-0.2)

s0 = s0[350:350+360, :][:, 40:101]
min_max_scaler = preprocessing.MaxAbsScaler()
s0 = min_max_scaler.fit_transform(s0)
#fig, ax = plt.subplots(figsize=(10,8))
#ax.imshow(s1,interpolation='quadric', aspect='auto')

s0fb = f.fb_pick_gather_wholetrace(s0,fb_tr_step=1,method='kmeans',w=21, c=2)

fig, ax = f.seisplot_wig(s0)
#ax.scatter(s0fb[:,0],s0fb[:,1], s=50,facecolors='none',edgecolors='b',lw=1)
#fig.savefig('fig/s1.pdf', dpi=200)


#%
''' multi-channel synthetic data (noisy) '''
np.random.seed(20180320)  #20180320
s0n = s0 + np.random.randn(s0.shape[0],s0.shape[1])*0.2

f.fb_pick_wholetrace(s0n[:,14], method='kmeans', plot=True,
                       c=2, w=21, nlta=20, nsta=10, a=0)

#%
t = np.arange(400) * dt * 1000
cwtmatr, freqs = tf.spectrum_cwt(t,
                                 s1[:, 13],
                                 wavelet='morl',
                                 widths=200,
                                 cmap='RdBu',
                                 colorscale=1,
                                 contour_dvision=41,
                                 freqmax=100,
                                 figsize=(12, 3),
                                 plot=True,
                                 ymin=5,
                                 ymax=80)

s1fb = f.fb_pick_gather_wholetrace(s1, fb_tr_step=1, method='kmeans', w=5, c=2)

fig, ax = f.seisplot_wig(s1, lw=0.8)
ax.scatter(s1fb[:, 0],
           s1fb[:, 1],
           s=50,
           facecolors='none',
           edgecolors='r',
           lw=2)
ax.set_yticks(np.arange(0, nt + 1, 50))
ax.set_yticklabels(np.arange(0, nt + 1, 50) * dt)
#fig.savefig('fig/micro_fb', dpi=200)

#%% parameter defination and label generate
dt = 0.002  # time interval
freq_index = [4, 5, 6, 7, 8, 9, 11, 13, 15, 19, 26, 39, 80]  #124
Esempio n. 3
0
testsize = 0.2
seed = 20180319
channel = 1
tinc = 2  # time increment of samples, inside time window
length = int(tw / tinc)
classes = 2

cbar_binary = ListedColormap(["darkgray", "yellow"])

tr_num = 260  # trace number

#%%
Obsfb = f.fb_pick_gather_wholetrace(Obs,
                                    fb_tr_step=10,
                                    method='kmeans',
                                    w=21,
                                    c=2)
fig, ax = f.seisplot_wig(
    Obs,
    inc=10,
    scale=30,
    lw=0.2,
)
#ax.scatter(Obsfb[:,0],Obsfb[:,1], s=30,facecolors='none',edgecolors='r',lw=1)
ax.set_yticks(np.arange(0, nt + 1, 400))
ax.set_yticklabels(np.arange(0, nt + 1, 400) * dt)
ax.set_xticks(np.arange(0, 967, 100))
ax.set_xticklabels(np.arange(0, 967, 100) / 10)
#fig.savefig('fig/obs', dpi=200)