Signal Processing Concepts for Airborne Sirotem Data

J. P. Cull

doi:10.1071/EG991097

ISSN: 0812-3985
E-ISSN: 1834-7533

Signal Processing Concepts for Airborne Sirotem Data
Authors J. P. Cull^a
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^a Dept of Earth Sciences Monash University, Wellington Rd, Clayton, , Vic, 3168
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 22, Issue 1, Mar 1991, p. 97 - 100
DOI: https://doi.org/10.1071/EG991097
- Published online: 01 Mar 1991

Abstract

Conventional stacking techniques are not generally suitable for airborne TEM surveys conducted at speeds exceeding 150 km/hr. For late channels (2-50 ms) linear stacking can be tolerated for up to 8 cycles representing lateral translations of 30 to 40 m accompanied by variations in coupling. The Nth root stack developed to reduce the effect of spikes in geophysical data can result in considerable distortion complicating the effects of sferics activity. Consequently other procedures are required including bandpass filters to compensate for bird motion, decay curve analysis, and spike rejection based on observations at a base station or predictive filtering.

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References

Butt, G.R., (1985). ‘Case histories showing various applications of a combined INPUT-magnetometer-spectrometer airborne geophysical system in Australia’. Explor. Geophys., 16,180-183.
Clarke, J., Gamble, T.D., Goubau, W.M., Koch, R.H., and Miracky, R.R, (1983). ‘Remote reference magnetotellurics: equipment and procedures’. Geophys. Prosp., 31, 149-170.
Cull, J.P., (1989). ‘Airborne Sirotem’. Explor. Geophys., 20, 399-402.
Gamble, T.D., Goubau, W.M., and Clarke, J., (1979). ‘Magnetotellurics with a remote magnetic reference’. Geophysics, 44, 53-68.
Lilley, F.E.M., (1984). ‘On the spatial pattern of magnetic fluctuations in the Cobar area, NSW’. Explor. Geophys., 15, 79-83.
McFadden, P.L., Drummond, B.J., and Kravis, S., (1986). The Nth-root stack: theory, applications, and examples’. Geophysics, 51, 1879-1892.
McCracken, K.G., Oristaglio, ML., and Hohmann, G.W., (1986). ‘Minimization of noise in electromagnetic exploration systems.’ Geophysics, 51, 819-832.
McCracken, K.G., Pik, J.P., and Harris, R.W., (1984). ‘Noise in EM exploration systems’. Explor. Geophys., 15, 169-174.
Palacky, G.J., (1981). ‘The airborne electromagnetic method as a tool of geological mapping’. Geophys. Prosp., 29, 60-88.
Palacky, G.J., (1976). ‘Use of decay patterns for the classification of anomalies in time domain AEM measurements’. Geophysics, 41, 1031-1041.
Palacky, G.J., and West, G.F., (1973). ‘Quantitative interpretation of INPUT AEM measurements’. Geophysics, 38, 1145-1158.
Spies, B.R., (1988). ‘Local noise prediction filtering for central induction transient electromagnetic sounding’. Geophysics, 53, 1068-1079.

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Article Type: Research Article

Keyword(s): airborne; electromagnetics; SIROTEM

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Signal Processing Concepts for Airborne Sirotem Data

Abstract

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