[Seisunix] Gain option definitions

[Gery]

Dear SU users,

Could someone provide the definition of gpow in the sugain options
please?

Thanks in advance,

Gery

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[Mark Howie]

Hi

The strict definition is
out[t] = int[t] ^ gpow

This is derived from the help information you can see if you run sugain
without any parameters.
#-> sugain

The default value of gpow is 1.

I would think it is used to filter / prepare data, e.g. as part of power
or RMS analysis.

Regards
Mark

[Gery Herbozo Jimenez]

Thanks Reg, Glenn and Mark for the answers,
 
I tried gpow with suplane and found that, for instance, gpow<1 (e.g 0.5) balances amplitude data, and gpow>1 (e.g. 2) enhances higher values. As you pointed out, it squares amplitude values. So, a simple test with tpow showed me what is the difference between them.
 
Thanks again,
 
Gery

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[Akinbehinje, Tope]

Hi,

The Seismic Unix has been reinstalled. I typed the following commands and I got the following response.

suplane | suxwigb
sh : xwigb: command not found
Broken pipe

What could be responsible for this? I typed echo $CWPROOT and got the following response.

echo $CWPROOT
/SU/bin

Thank you for your anticipated assistance.

Best regards,

Tope.

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[Gery]

Hi

Try this:

export CWPROOT=your/su/path
export PATH=$PATH:${CWPROOT}/bin

Where did you installed the src file?

Gery

Sent from my iPod.

On Jun 1, 2010, at 16:52, "Akinbehinje, Tope" <tope.aki...@maerskoil.com

[Reginald Beardsley]

Probably have CWPROOT set wrong.

Try removing the /bin at the end.