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vibroseis deconvolution without the reference sweep

Started by namespace October 10, 2006
I have a vibroseis dataset which has been collected in the field.  To my
knowledge, the recorded signal s'[t] is the convolution of the original
sweep s[t] and the reflection response r[t] of the layered earth.  Thus,
the relationship is expressed in its simplest form as s'[t] = s[t]*r[t],
neglecting the effects of earth attenuation and noise.  However, I do not
have the reference sweep s[t] since this data has been transferred from
tape, and unfortunately, the tape has been damaged and discarded sometime
in the past.  (I do not even have the original media on which the signal
was recorded).  All that I have is s'[t].  Is there a way to recover the
reflection response r[t] without use of the original reference sweep
s[t]?



This is a mistake.  Please disregard.  I had submitted the same post 
earlier, but I thought that this one did not make it due to a server error. 
Apparently it has found its way on comp.dsp about a day later.

You can see the original post above by searching this archive for "vibroseis 
deconvolution without the target sweep."

My apologies for any inconvenience that this may have caused.

Nicholas (namespace)

>I have a vibroseis dataset which has been collected in the field. To my > knowledge, the recorded signal s'[t] is the convolution of the original > sweep s[t] and the reflection response r[t] of the layered earth. Thus, > the relationship is expressed in its simplest form as s'[t] = s[t]*r[t], > neglecting the effects of earth attenuation and noise. However, I do not > have the reference sweep s[t] since this data has been transferred from > tape, and unfortunately, the tape has been damaged and discarded sometime > in the past. (I do not even have the original media on which the signal > was recorded). All that I have is s'[t]. Is there a way to recover the > reflection response r[t] without use of the original reference sweep > s[t]? > > >