Guralp Systems ART - Manual (Page 62)

ART
• The polarity of the peak ground motion parameters is
now displayed.
• The absolute significant (effective) duration is now
computed.
• The cut-off frequency and order of the high-pass
Butterworth filter can be chosen interactively using
Fourier amplitude spectra of the signal and the noise
(estimated from the pre-event portion of the time-
history).
• The units used to display accelerations, velocities and
displacements can be chosen.
62 Issue C