SUMMARY

Applies a Khronhite filter to the data.

SYNTAX

KHRONHITE {v}

INPUT

v:	Cutoff frequency in hertz.

DEFAULT VALUES

KHRONHITE 2.0

DESCRIPTION

This lowpass filter is a digital approximation of an analog filter which was a cascade of two fourth-order Butterworth lowpass filters. This lowpass filter has been used with a corner frequency of 0.1 Hz to enhance measurements of the amplitudes of the fundamental mode Rayleigh wave (Rg) at regional distances.

HEADER CHANGES

DEPMIN, DEPMAX, DEPMEN

LATEST REVISION

February 15, 1987