An online magnetic compensation method for carriers based on vector measurement
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摘要: 针对传统载体磁补偿求解系数存在病态性的问题,本文研究了磁干扰的主要来源,忽略了涡流场的影响,在原有的模型基础上进行了简化,建立了三分量磁补偿模型,由此提出了磁场分量的在线载体补偿方法。通过与传统方法进行对比仿真,本文方法有效提高了约1.14 nT的补偿精度。同时利用现场可编程逻辑门阵列(field programmable gate array,FPGA)的高层次综合工具(high-level synthesis, HLS)对该方法进行了嵌入式硬件仿真,验证了方法在硬件系统的实时性和补偿精度。Abstract: Aiming at the ill-conditioned coefficients in the traditional carrier magnetic compensation, this study investigated the main source of magnetic interference, simplified the original model by ignoring the influence of the eddy current field, and established a three-component magnetic compensation model. Accordingly, it proposed an online carrier magnetic compensation method for the magnetic field components. Compared with the traditional method, the method proposed in this study effectively improved the compensation accuracy by about 1.14 nT. This study conducted embedded hardware simulations of this method using the high-level synthesis (HLS) tool of the field programmable gate array (FPGA), verifying the real-time performance and magnetic compensation accuracy of this method in a hardware system.
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Key words:
- magnetic interference /
- HLS /
- vector /
- online compensation
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[1] 张昌达. 关于磁异常探测的若干问题[J]. 工程地球物理学报, 2007, 4(6),549-553.
[2] Zhang C D. Several issues on the detection of magnetic anomalies[J]. Journal of Engineering Geophysics, 2007, 4(6),549-553.
[3] Reeves C V. Aeromagnetic surveys principles,practices & interpretation[M]. Washington:GEOSOFT, 2005:31-32.
[4] Xiong S Q, Tong J, Ding Y Y, et al. Aeromagnetic data and geological structure of continental China:A review[J]. Applied Geophysics, 2017, 13(2):227-237.
[5] 朱学军. 无人机航磁测量中载体干扰磁场补偿方法研究[D]. 长沙: 国防科学技术大学, 2014.
[6] Zhu X J. Research on compensation method of carrier interference magnetic field in field in UAV aeromagnetic survey[D]. Changsha: National University of Defense Technology, 2014.
[7] 张光, 张英堂, 尹刚, 等. 一种磁张量探测系统载体的磁张量补偿方法[J]. 地球物理学报, 2016, 59(1):311-317.
[8] Zhang G, Zhang Y T, Yi G, et al. Magnetic tensor compensation method for magnetic tensor detection system carrier[J]. Acta Geophysics, 2016, 59(1):311-317.
[9] Tolles W E. Compensation of induced magnetic fields in MAD equipped aircraft[R]. Airborne Instruments Lab,OSRD, 1943.
[10] Tolles W E, Lawson J D. Magnetic compensation of MAD equipped aircraft[R]. Airborne Instruments Lab.Inc., 1950.
[11] 韩磊. 航空磁异常探测关键技术研究[D]. 哈尔滨: 哈尔滨工业大学, 2014.
[12] Han L. Research on key technologies of aeromagnetic anomaly detection[D]. Harbin: Harbin Institute of Technology, 2014.
[13] 谭斌, 林春生, 张宁, 等. 地磁场梯度对飞机磁场求解精度的影响分析[J]. 武汉大学学报:信息科学版, 2011, 36(12):1482-1485.
[14] Tan B, Lin C S, Zhang N, et al. Analysis of the influence of geomagnetic field gradient on the accuracy of aircraft magnetic field solution[J]. Journal of Wuhan University :Information Science Edition, 2011, 36(12):1482-1485.
[15] 何敬礼. 飞机磁场的自动补偿方法[J]. 物探与化探, 1985, 9(6):464-469.
[16] He J L. Automatic compensation method of aircraft magnetic field[J]. Geophysical and Geochemical Exploration, 1985, 9(6):464-469.
[17] Williams P M. Aeromagnetic compensation using neural networks[J]. Neural Computing & pplications, 1993 (1):207-214.
[18] 边刚, 刘雁春, 卞光浪, 等. 海洋磁力测量中多站地磁日变改正值计算方法研究[J]. 地球物理学报, 2009, 52(10):2613-2618.
[19] Bian G, Liu Y C, Bian G L, et al. Research on calculation method of multi-station geomagnetic diurnal correction value in marine magnetometric survey[J]. Acta Geophysics, 2009, 52(10):2613-2618.
[20] Hardwick C D. Techniques for achieving stableand aeromagnetic compensation coefficients[C]// 1986 SEG Annual Meeting. Houston,Texas: Society of Exploration Geophysicists, 1986:140-141.
[21] Leach B W. Aeromagnetic compensation as a linear regression problem[J]. Information Linkage Between Applied Mathematics and Industry, 1980, 2(2):139-161.
[22] 伍东凌, 陈正想, 王秀. 基于遗传算法的磁干扰补偿方法[J]. 探测与控制学报, 2012, 34(6):16-20.
[23] Wu D L, Cheng Z X, Wang X. Magnetic interference compensation method based on genetic algorithm[J]. Journal of Detection and Control, 2012, 34(6):16-20.
[24] 潘雪, 张琦, 潘孟春, 等. 一种考虑地磁梯度变化的航磁补偿方法[J]. 传感器与微系统, 2020, 39(10):5-7,10.
[25] Pan X, Zhang Q, Pan M C, et al. An aeromagnetic compensation method considering geomagnetic gradient changes[J]. Sensors and Microsystems, 2020, 39(10):5-7,10.
[26] 赵塔. 海域环境下铁磁性载体地磁场矢量差分检测方法研究[D]. 长春: 吉林大学, 2016.
[27] Zhao T. Research on vector difference detection method of ferromagnetic carrier geomagnetic field in marine environment[D]. Changchun: Jilin University, 2016.
[28] 高全明. 固定翼无人机航磁三分量系统误差校正与干扰补偿技术研究[D]. 长春: 吉林大学, 2020.
[29] Gao Q M. Research on error correction and interference compensation technology of fixed-g UAV aeromagnetic three-component system[D]. Changchun: Jilin University, 2020.
[30] 冯彦, 蒋勇, 孙涵, 等. 地磁场水平梯度及高空地磁场的计算与分析[J]. 地球物理学进展, 2013, 28(2):735-746.
[31] Fen Y, Jiang Y, Sun H, et al. Calculation and analysis of horizontal gradient of geomagnetic field and high-altitude geomagnetic field[J]. Advances in Geophysics, 2013, 28(2):735-746.
[32] 张永军, 吴磊, 林立文, 等. 摄影测量中病态问题的条数指标分析[J]. 武汉大学学报:信息科学版, 2010, 35(3):308-312.
[33] Zhang Y J, Wu L, Lin L W, et al. Analysis of number index of pathological problems in photogrammetry[J]. Journal of Wuhan University:Information Science Edition, 2010, 35(3):308-312.
[34] Moulin M, Goudon J C, Marsy J M, et al. Process for compensating the magnetic disturbances in the determination of a magnetic heading,and devices for carrying out this process:US, US4414753 A[P].
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