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无人飞艇长导线源时域地空电磁勘探系统及其应用

DOI: 10.6038/cjg20131105, PP. 3640-3650

Keywords: 无人飞艇,电性源地空电磁系统,二维有限差分,全差分放大,独立分量分析

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Abstract:

以无人飞艇作为载体的时域地空电磁探测系统,具有高效、低成本、勘探深度大和空间分辨率高等优点.本文基于二维有限差分方法,分析了长导线源地空电磁响应的特征和变化规律、以及飞行高度的影响;在此基础上,采用32位Cortex-M3内核处理器,以全差分模拟前端压制电磁干扰,实现了24位低噪声多通道海量电磁数据的同步采样及存储,研制了一套可搭载于无人飞艇的时域电磁接收系统,并基于Wi-FiMesh无线多跳网络实现了地面远程监控.通过分析飞艇发动机的电磁噪声特点,采用独立分量分析法进行实测数据的噪声去除.研制的地空电磁接收系统使用无人飞艇搭载,在江苏省南通市如东县和内蒙古巴彦宝力格地区进行了电磁探测实验,地空电磁勘探结果与地面瞬变电磁和大地电磁方法进行了对比,证明了地空电磁探测方法的有效性.无人飞艇时域地空电磁探测系统的成功飞行实验,为在我国草原沙漠地区、海陆交互地带、沼泽地带、无人山区等特殊景观地区开展矿产资源、水资源、地质灾害等电磁探测提供了新方法和新思路.

References

[1]  朱凯光, 林君, 刘长胜等. 频率域航空电磁法一维正演与探测深度, 地球物理学进展. 2008, 23(6): 1943-1946. Zhu K G, Lin J, Liu C S, et al. One-dimensional forwand and prospecting depth for airborne frequency domain electromagnetic method. Progress in Geophysics (in Chinese), 2008, 23(6): 1943-1946.
[2]  Tohru M, Yoshikazu T, Kusunoki K, et al. Development of grounded electrical source airborne transient EM(GREATEM). Exploration Geophysics, 1998, 29(1-2): 61-64.
[3]  Mogi T, Kusunoki K, Kaieda H, et al. Grounded electrical-source airborne transient electromagnetic (GREATEM) survey of Mount Bandai, north-eastern Japan. Exploration Geophysics, 2009, 40(1): 1-7.
[4]  嵇艳鞠, 林君, 许洋铖. 大定源时间域吊舱式半航空电磁勘探理论研究. 第九届中国国际地球电磁学术讨论会论文集, 2009: 121-126. Ji Y J, Lin J, Xu Y C. Research of semi-airborne electromagnetic exporation using towed boom aem system by large rectangular loop (in Chinese). 9th China International Geo-electromagnetic Workshop, 2009: 121-126.
[5]  Ji Y J, Yang G H, Guan S S, et al. Interpretation research on electrical source of time domain ground-airborne electromagnetic data. ICETCE, 2011, 4(6): 1537-1540.
[6]  Munkholm M S. Motion-induced noise from vibration of a moving TEM detector coil: Characterization and suppression. Journal of Applied Geophysics, 1997, 37(1): 21-29.
[7]  王忠, 黄跃, 林君等. 高速、大动态范围瞬变电磁接收机的研制. 仪器仪表学报, 2006, 27(4): 416-419. Wang Z, Huang Y, Lin J. Development of high speed and large dynamic range transient electromagnetic receiver. Chinese Journal of Scientific Instrument (in Chinese), 2006, 27(4): 416-419.
[8]  Biswas S, Morris R. Exor: opportunistic multi-hop routing for wireless networks.// Proceedings of the 2005 Conference on Applications, Technologies, Architectures, and Protocols for Computer Communications. New Yori: ACM, 2005.
[9]  Lin X D, Ling X H, Zhu H J, et al. A novel localised authentication scheme in IEEE 802. 11 based wireless mesh networks. Int. J. Security and Networks, 2008, 3(2): 122-132.
[10]  乔吉果, 龙江平. 南通滨海地区海水入侵程度及影响因素探讨. 贵阳学院学报(自然科学版), 2010, 5(3): 27-31. Qiao J G, Long J P. The degree of seawater intrusion and the influence factors in coastal areas, Nantong. Journal of Guiyang University (Natural Sciences) (in Chinese), 2010, 5(3): 27-31.
[11]  谭克龙, 伍耀中, 王飞跃. 内蒙巴彦宝力格地区遥感找水应用研究. 遥感技术与应用, 1999, 14(3): 18-23. Tan K L, Wu Y Z, Wang F Y. Study of water resource investigation of remote sensing in Inner Mongolia. Remote Sensing Technology and Application (in Chinese), 1999, 14(3): 18-23.
[12]  Fountain D. 60 years of airborne Em-focus on the last decade.//AEM2008-5th International Conference on Airborne Electromagnetics Haikko Manor. Finland, 2008: 1-5.
[13]  Ito H, Mogi T, Jomori A, et al. Further investigations of underground resistivity structures in coastal areas using grounded-source airborne electromagnetics. Earth, Planets and Space, 2011, 63(8): e9-e12.
[14]  Spies B R. Local noise prediction filtering for central induction transient electromagnetic sounding. Geophysics, 1988, 53(8): 1068-1079.
[15]  Lemire D. Baseline asymmetry, Tau projection, B-field estimation and automatic half-cycle rejection, THEM Geophysics Inc. Technical Report, 2001.
[16]  Davis A C, Macnae J, Robb T. Pendulum motion in airborne HEM systems. Exploration Geophysics, 2006, 37(4): 355-362.
[17]  嵇艳鞠, 李肃义, 于生宝等. 基于异常线圈的时间域AEM系统测试和标定方法研究. 地球物理学报, 2011, 54(10): 2690-2697. Ji YJ, Li S Y, Yu S B, et al. A study on time-domain AEM testing and calibration method based on anomaly loop. Chinese Geophysics. (in Chinese), 2011, 54(10): 2690-2697.
[18]  许洋铖, 林君, 李肃义等. 全波形时间域航空电磁响应三维有限差分数值计算. 地球物理学报, 2012, 55(6): 2105-2114. Xu Y C, Lin J, Li S Y, et al. Calculation of full-waveform airborne electromagnetic response with three-dimension finite-difference solution in time-domain. Chinese J. Geophys. (in Chinese), 2012, 55(6): 2105-2114.
[19]  Jaakko S, Harri V. Denoising source separation. Journal of Machine Learning Research, 2005, 6: 233-272.
[20]  刘祥平, 王建明. 改进ICA去噪方法在瞬变电磁信号处理中的应用. 北京师范大学学报(自然科学版), 2011, 47(1): 35-39. Liu X P, Wang J M. Improved ICA denoising method and application in transient electromagnetic signal processing. Journal of Beijing Normal University (Natural Science) (in Chinese), 2011, 47(1): 35-39.
[21]  单卫华, 邢卫兵. 南通沿海地区主采层地下水咸化特征. 地质学刊, 2008, 32(4): 286-291. Shan W H, Xing W B. On salination properties of main groundwater mining strata along costal region in Nantong. Journal of Geology (in Chinese), 2008, 32(4): 286-291.

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