Digital hum filtering

Citation data:

Computers & Geosciences, ISSN: 0098-3004, Vol: 20, Issue: 5, Page: 881-888

Publication Year:
1994
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Repository URL:
http://scholarsmine.mst.edu/geosci_geo_peteng_facwork/565
DOI:
10.1016/0098-3004(94)90119-8
Author(s):
Knapp, Ralph W.; Anderson, Neil Lennart
Publisher(s):
Elsevier BV; Elsevier Limited
Tags:
Computer Science; Earth and Planetary Sciences; Digital Signal Processing; Fourier Analysis; Noise Attenuation; Notch Filtering; Powerline Leakage; Reflection Seismic Data Processing; Reflection Seismology; Attenuation; Data Processing; Signal Filtering And Prediction; Spurious Signal Noise; Hum; Digital Signal Processing; Fourier Analysis; Noise Attenuation; Notch Filtering; Powerline Leakage; Reflection Seismic Data Processing; Reflection Seismology; Attenuation; Data Processing; Signal Filtering And Prediction; Spurious Signal Noise; Hum; Geology
article description
Data may be overprinted by a steady-state cyclical noise (hum). Steady-state indicates that the noise is invariant with time; its attributes, frequency, amplitude, and phase, do not change with time. Hum recorded on seismic data usually is powerline noise and associated higher harmonics; leakage from full-waveform rectified cathodic protection devices that contain the odd higher harmonics of powerline frequencies; or vibrational noise from mechanical devices.