Problem
Q.Given a seismic wavelet w=(6, -4 ,-2) and reflectivity series r=(0, 1, 0) , the seismic trace is.....
A) (0, -4, 0, 0, 0)
B) (0, -2, -4, 6, 0)
C) (0, 6, 0, 0, 0)
D) (0, 6, -4, -2, 0)
Solution:
Seismic
trace can modeled as the convolution of the input singature with
reflectivity function of the earth impulse response , including
source signature, recording filter, surface reflections, and geophone
response.
Seismic
trace = seismic wavelet * reflectivity function+ noise
seismic
wavelet w= {6, -4, -2}
reflectivity
series r= {0,1,0}
6 -4 -2
0 1 0 0*6= 0
0 1 0 (1*6) + (0*-4) = 6
0 1 0 (0*6)+(1*-4)+(0*-2) = -4
0 1 0 (0*-4) + (1*-2)
= -2
0 1 0 (0*-2) = 0
seismic
trace = { 0, 6, -4, -2, 0}
thank you
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