A mean-based filter to remove power line harmonic noise from seismic reflection data


KARSLI H., DONDURUR D.

JOURNAL OF APPLIED GEOPHYSICS, vol.153, pp.90-99, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 153
  • Publication Date: 2018
  • Doi Number: 10.1016/j.jappgeo.2018.04.014
  • Journal Name: JOURNAL OF APPLIED GEOPHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.90-99
  • Keywords: Power line harmonic noise, Local iterative trimmed and truncated, mean filter, Spectral domain filtering, Notch filter, GEOPHYSICAL RECORDS
  • Dokuz Eylül University Affiliated: Yes

Abstract

Power line harmonic noise generated by power lines during the seismic data acquisition in land and marine seismic surveys generally appears as a single frequency with 50/60 Hz (or multiples of these frequencies) and contaminates seismic data leading to complicate the identification of fine details in the data. Commonly applied method during seismic data processing to remove the harmonic noise is classical notch filter (or very narrow band-stop filter), however, it also attenuates all recorded data around the notch frequencies and results in a complete loss of available information which corresponds to fine details in the seismic data.