Research on Compensation Algorithm of Three Axis Gradient Aeromagnetic Prospecting System

WU Peilin; ZHANG Qunying; LI Guang; LIU Lihua; FANG Guangyou

doi:10.11999/JEIT170233

Volume 39 Issue 12

Dec. 2017

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WU Peilin, ZHANG Qunying, LI Guang, LIU Lihua, FANG Guangyou. Research on Compensation Algorithm of Three Axis Gradient Aeromagnetic Prospecting System[J]. Journal of Electronics & Information Technology, 2017, 39(12): 3030-3038. doi: 10.11999/JEIT170233

Citation:

WU Peilin, ZHANG Qunying, LI Guang, LIU Lihua, FANG Guangyou. Research on Compensation Algorithm of Three Axis Gradient Aeromagnetic Prospecting System[J]. Journal of Electronics & Information Technology, 2017, 39(12): 3030-3038. doi: 10.11999/JEIT170233

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Research on Compensation Algorithm of Three Axis Gradient Aeromagnetic Prospecting System

doi: 10.11999/JEIT170233 cstr: 32379.14.JEIT170233

Funds:

RD of Key Instruments and Technologies of China (ZDYZ2012-1-03)

Received Date: 2017-03-20
Rev Recd Date: 2017-09-01
Publish Date: 2017-12-19

Abstract

Abstract

Aeromagnetic prospecting is an important method in geophysical prospecting for its high-efficiency and convenience. In the paper, a new kind of the three axis gradient system based on the unmanned helicopter is designed and an aeromagnetic compensation method based on the neural network is proposed. The system is equipped with four Optically Pumped Magnetometers (OPMs), from which the three axis gradient data can be achieved. In aeromagnetic compensation, the feedforward network is used. The Improvement Ratio (IR) of the three axis gradient data is 15.2, 4.7 and 5.9, respectively. The Peak Signal to Noise Ratio (PSNR) of the three axis gradient data is improved by 17.1 dB, 6.5 dB and 6.5 dB, respectively. Through the result of the Cross Calibration Index (CCI), the generalization ability of the method is good. The three axis gradient system and the aeromagnetic compensation are proven valid in aeromagnetic prospecting by an experiment.
- Geophysical prospecting,
- Three axis gradient system,
- Aeromagnetic compensation,
- Optically Pumped Magnetometer (OPM),
- Unmanned helicopter

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References

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