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Proceedings Paper

Conductivity depth imaging of Airborne Electromagnetic data with double pulse transmitting current based on model fusion
Author(s): Jing Li; Mei Dou; Yiming Lu; Cong Peng; Zining Yu; Kaiguang Zhu
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Paper Abstract

The airborne electromagnetic (AEM) systems have been used traditionally in mineral exploration. Typically the system transmits a single pulse waveform to detect conductive anomaly. Conductivity-depth imaging (CDI) of data is generally applied in identifying conductive targets. A CDI algorithm with double-pulse transmitting current based on model fusion is developed. The double-pulse is made up of a half-sine pulse of high power and a trapezoid pulse of low power. This CDI algorithm presents more shallow information than traditional CDI with a single pulse. The electromagnetic response with double-pulse transmitting current is calculated by linear convolution based on forward modeling. The CDI results with half-sine and trapezoid pulse are obtained by look-up table method, and the two results are fused to form a double-pulse conductivity-depth imaging result. This makes it possible to obtain accurate conductivity and depth. Tests on synthetic data demonstrate that CDI algorithm with double-pulse transmitting current based on model fusion maps a wider range of conductivities and does a better job compared with CDI with a single pulse transmitting current in reflecting the whole geological conductivity changes.

Paper Details

Date Published: 23 January 2017
PDF: 7 pages
Proc. SPIE 10322, Seventh International Conference on Electronics and Information Engineering, 103221M (23 January 2017); doi: 10.1117/12.2265222
Show Author Affiliations
Jing Li, Jilin Univ. (China)
Mei Dou, Jilin Univ. (China)
Yiming Lu, Jilin Univ. (China)
Cong Peng, Jilin Univ. (China)
Zining Yu, Jilin Univ. (China)
Kaiguang Zhu, Jilin Univ. (China)


Published in SPIE Proceedings Vol. 10322:
Seventh International Conference on Electronics and Information Engineering
Xiyuan Chen, Editor(s)

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