Hello everyone
I would like to apply a derivative to a signal. I made a test with a simple cosine (created with suvibro) applying suop op=diff ... but I didn't get a sine. Why? thanks in advance
-- luca
Hi, I agree with you.
Comparing the outputs of suvibro f1=0.5 f2=0.5 | suxgraph style=normal width=1500 title=normal suvibro f1=0.5 f2=0.5 | suop of=diff | suxgraph style=normal width=1500 title=normal
it looks like there is an absolute value somewhere in the data flow. Notice that abs is the default option. So, I suspect a bug....
The code needs to be checked. D.
On 04/11/2020 17:16, vld3 wrote:
Hello everyone I would like to apply a derivative to a signal. I made a test with a simple cosine (created with suvibro) applying suop op=diff ... but I didn't get a sine. Why? thanks in advance -- luca
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I think I had this problems some time ago and wrote a quick and dirty time differentiator. Attached TAZ. -- Shuki
On Wed, Nov 4, 2020 at 8:50 AM Dominique ROUSSET < dominique.rousset@univ-pau.fr> wrote:
Hi, I agree with you.
Comparing the outputs of suvibro f1=0.5 f2=0.5 | suxgraph style=normal width=1500 title=normal suvibro f1=0.5 f2=0.5 | suop of=diff | suxgraph style=normal width=1500 title=normal
it looks like there is an absolute value somewhere in the data flow. Notice that abs is the default option. So, I suspect a bug....
The code needs to be checked. D.
On 04/11/2020 17:16, vld3 wrote:
Hello everyone
I would like to apply a derivative to a signal. I made a test with a simple cosine (created with suvibro) applying suop op=diff ... but I didn't get a sine. Why? thanks in advance
-- luca
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-- |Dominique Rousset LFCR UMR5150 / E2S UPPA / Dpt des géosciences| |Univ. Pau et des Pays de l'Adour BP 1155 F-64013 Pau Cedex - France| |mailto:dominique.rousset@univ-pau.fr dominique.rousset@univ-pau.fr jami:drousset http://lfc.univ-pau.fr%7C |Off: +33 559 407 423|Cell: +33 660 861 391|xmpp: dominique@rousset.nom.fr|
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Sorry, there was a nasty typo in my command ! using
suvibro f1=0.5 f2=0.5 | suop op=diff | suxgraph style=normal width=1500 title=normal
the result looks correct with some perturbations due to the beginning and end tapers
D.
On 04/11/2020 17:45, Dominique ROUSSET wrote:
suvibro f1=0.5 f2=0.5 | suop of=diff | suxgraph style=normal width=1500 title=normal
Yes ... I controlled: the problem is only on beginning and end ...
this image is from suvibro f1=10 f2=10 tv=10 t1=0 t2=0 | suop op=diff (green)
luk
On 04/11/2020 18:56, Dominique ROUSSET wrote:
Sorry, there was a nasty typo in my command ! using
suvibro f1=0.5 f2=0.5 | suop op=diff | suxgraph style=normal width=1500 title=normal
the result looks correct with some perturbations due to the beginning and end tapers
D.
On 04/11/2020 17:45, Dominique ROUSSET wrote:
suvibro f1=0.5 f2=0.5 | suop of=diff | suxgraph style=normal width=1500 title=normal
-- |Dominique Rousset LFCR UMR5150 / E2S UPPA / Dpt des géosciences| |Univ. Pau et des Pays de l'Adour BP 1155 F-64013 Pau Cedex - France| |mailto:dominique.rousset@univ-pau.fr jami:drousset http://lfc.univ-pau.fr%7C |Off: +33 559 407 423|Cell: +33 660 861 391|xmpp:dominique@rousset.nom.fr|
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