Thread: SAC Question

Started: 2014-03-19 18:05:02
Last activity: 2014-03-19 19:59:13
Topics: SAC Help
Daniel Whitehead
2014-03-19 18:05:02
Email address: ee11ddw<at>leeds.ac.uk

Dear Sir/Madam,

Is there a simple way to calculate signal to noise ratio of an arrival on SAC?

Best regards,

Daniel Whitehead

  • George Helffrich
    2014-03-19 19:59:13
    Dear All -

    SAC provides no built-in way to do this because there is no standard definition of S/N. Once you define your measure SAC can help calculate it, though. Useful commands are RMS and MARKPTP.

    The caption of Fig. 3 of Tanaka (2002), EPSL v. 203, 879-893 provides a good conceptual framework for any S/N definition and consequent travel time measurement uncertainty.

    On 19 Mar 2014, at 11:05, Daniel Whitehead wrote:

    Email address: ee11ddw<at>leeds.ac.uk

    Dear Sir/Madam,

    Is there a simple way to calculate signal to noise ratio of an arrival on SAC?

    Best regards,

    Daniel Whitehead
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    George Helffrich
    george.helffrich<at>bris.ac.uk



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