Thread: Evalresp and PZ file

Started: 2014-10-30 06:16:12
Last activity: 2014-10-30 06:16:12
Topics: SAC Help
Hamidatul Husna Matondang
Evalresp and PZ file
2014-10-30 06:16:12
Dear Sir,

I have RESP file and polezero file which produced from SEED volumes by the RDSEED
program.
I want to remove the instrument response from "file.SAC" and apply the the polezero file that I create.

if I apply the command "trans from evalresp to polezero subtype "created filename" freq 0.025 0.05 10 20" is it correct command and makes sense?

Should I do a taper command when I apply transfer? If I don't do it, what's the effect on my signal?

Thank You

Regards,
Ami
  • Sheila Peacock
    Re: Evalresp and PZ file
    2014-10-29 22:54:35
    On 10/29/2014 03:16 PM, amik Amik wrote:
    Dear Sir,

    I have RESP file and polezero file which produced from SEED volumes by the RDSEED program.
    I want to remove the instrument response from "file.SAC" and apply the the polezero file that I create.

    if I apply the command "trans from evalresp to polezero subtype "created filename" freq 0.025 0.05 10 20" is it correct command and makes sense?

    Should I do a taper command when I apply transfer? If I don't do it, what's the effect on my signal?

    Thank You

    Regards,
    Ami


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    As far as I can see, your command is correct.

    I normally apply "rmean", "rtrend" and "taper" before any
    filtering operation including deconvolution. Otherwise
    the sharp cutoffs at the ends of your trace may cause large
    artificial signals when the filter is applied.

    Regards,
    Sheila Peacock.

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