wiki:Shx/ShPsd

Version 1 (modified by KlausStammler, 4 years ago) (diff)

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Compute power spectral density

PSD <trclist> [<start> <end>]:

Computes power spectral density for all traces specified. Creates new traces on display which should be plotted separately from time domain seismograms.

parameters

  • <trclist> parameter type: trace list
    List of traces to be processed.
  • <start> parameter type: float
    Relative start time of time window. If omitted (together with <end>), the whole trace is used.
  • <end> parameter type: float
    Relative end time of time window. If omitted (together with <start>), the whole trace is used.

qualifiers

  • /OVERLAP
    Use overlapping time windows for PSD computation (50% overlap).

example

psd 1-3
Computes PSD spectra for first three traces.