Guralp Systems ART - Manual (Page 23)

User guide
3.2.5 Filter time-histories
Clicking on this button will filter the currently selected time-
histories using a high pass bi-directional Butterworth filter with
corner frequency and order given in ‘Options’ window (‘fl’ and
‘order’ are the corner frequency and order used for the
filtering). The algorithm used to do the filtering is the same as
that used in BAP v1.0 (Converse & Brady, 1992), which zero-
pads the time-history. Note that the time to accomplish the
filtering has been significantly reduced in ART3.0 in comparison
to earlier versions.
3.2.6 Export data
Clicking on this button opens
up a window that enables the
user to export uncorrected
acceleration
time-histories,
corrected acceleration, velocity
and displacement time-
histories, Fourier amplitude
spectra, elastic response
spectra, input energy spectra
and drift spectra in a variety of
different formats. A new
window is opened with six
buttons.
Clicking on the top button will
export
uncorrected
acceleration time-histories.
Clicking on the next button
down will export the corrected
acceleration, velocity and
displacement time-histories (if
the time-histories selected have not been filtered then the
uncorrected time-histories will be exported). Clicking on the
next button will export the Fourier amplitude spectra (the
spectra will be calculated). Clicking on the next button down
will export the calculated elastic response spectra (the spectra
will be calculated). Clicking on the next button will export the
input energy spectra (the spectra will be calculated) and
clicking on the lowest button will export the calculated drift
spectra.
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