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Mining Publication: Time and Amplitude Statistics for Electromagnetic Noise in Mines

NOTE: This page is archived for historical purposes and is no longer being maintained or updated. Contact NIOSH Mining if you need an accessible version.

Original creation date: September 1974

Image of publication Time and Amplitude Statistics for Electromagnetic Noise in Mines

The time and amplitude statistics necessary to adequately describe electromagnetic (EM) noise in mines are illustrated through computer soft- ware techniques. They are 1) Allan Variance Analyses (AVA), 2) Interpulse Spacing Distributions (ISD), 3) Pulse Duration Distributions (PDD), 4) Average Crossing Rates (ACR), and 5) Amplitude Probability Distribution (APD). These statistics are illustrated using data taken from a rather large store of raw analog data recorded in operational mines. The curves generated for the illustrations characterize the noise environment in the mines from which the corresponding data were taken, and should aid in the design of reliable communication systems for such mines.

Authors: M Kanda

Contract/MOA Report - September 1974

NIOSHTIC2 Number: 10001383

U.S. Department of the Interior, Bureau of Mines, Contract No. H0133005. NTIS No. Com/741-1450, 1974; :1-53