磁探拖体的磁补偿参数地面校准方法

韩琦; 李尤; 薛奇; 乔治; 王琛; 佟晓筠

doi:10.11993/j.issn.2096-3920.2023-0059

磁探拖体的磁补偿参数地面校准方法

doi: 10.11993/j.issn.2096-3920.2023-0059

韩琦^1,,
李尤^1,,
薛奇^1,,
乔治^1,,
王琛^1,,
佟晓筠^2,

1.
哈尔滨工业大学信息对抗技术研究所, 黑龙江哈尔滨, 150086
2.
哈尔滨工业大学(威海) 计算机学院, 山东威海, 264209

基金项目: 国家自然科学基金项目(61771168)

详细信息

作者简介:
韩琦：韩　琦(1981-), 男, 教授, 主要研究方向为航空磁探理论

中图分类号: U674.941; TJ67
计量
- 文章访问数: 105
- HTML全文浏览量: 16
- PDF下载量: 37
- 被引次数: 0
出版历程
- 收稿日期: 2023-05-15
- 修回日期: 2023-06-02
- 录用日期: 2023-06-05
- 网络出版日期: 2023-06-21

Ground Calibration Method of Magnetic Compensation Parameters forMagnetometer Towfish

HAN Qi^1
,,
LI You^1
,,
XUE Qi^1
,,
QIAO Zhi^1
,,
WANG Chen^1
,,
TONG Xiaojun^2
,

1.
Harbin Institute of Technology, Information Countermeasure Technique Institute, Harbin 150086, China
2.
Harbin Institute of Technology(WeiHai), School of Computer Science and Technology, Weihai 264209, China

摘要

摘要: 磁探拖体可用于水中、空中拖曳式磁场测量, 尽管拖体中没有动力系统, 但是仍然有显著的磁场干扰存在, 因此也需要进行磁干扰补偿, 但拖体自身不具有机动能力, 无法通过类似航空平台的机动校准方法进行磁补偿参数的求解。文中针对这一问题提出了一种适用于磁探拖体的磁补偿参数地面校准方法, 设计了地面磁补偿校准装置, 对实施场地的磁场环境进行了一定约束, 在与航空磁补偿参数校准方案等效性分析的基础上, 设计了适用于磁探拖体的地面校准方法, 并开展了实际环境下的地面校准试验和动态噪声试验验证。试验结果表明, 该方法针对拖曳式磁测装置的磁补偿参数校准具有良好的效果, 磁补偿参数质量可以和航空平台磁补偿参数相当, 试验中磁补偿校准改善比大于16。
- 磁探拖体 /
- 磁干扰补偿 /
- 参数校准 /
- 等效性分析
Abstract: Magnetometer towfish can be utilized for underwater and aerial towed magnetic field measurements. Although they lack propulsion systems, significant magnetic interference persists, necessitating magnetic interference compensation. However, as towfish possess no maneuverability, they cannot employ calibration methods akin to those of airborne platforms for determining magnetic compensation parameters. This article proposed a ground calibration method of magnetic compensation parameters for magnetometer towfish and designed a ground magnetic interference calibration device to impose certain constraints on the magnetic field environment. Based on the equivalence analysis with the aeromagnetic compensation parameter calibration scheme, a ground calibration method tailored for magnetometer towfish was designed and subsequently subjected to ground calibration experiments and dynamic noise validation in actual environments. Experimental results reveal that the method possesses remarkable efficacy for calibrating magnetic compensation parameters of towfish by using towed magnetic field measurement devices, yielding a quality akin to that of aircraft platforms. The improvement ratio for magnetic compensation calibration exceeds 16.
- magnetometer towfish /
- magnetic interference compensation /
- parameter calibration /
- equivalence analysis

HTML全文

图 1 磁探拖体结构示意图

Figure 1. Structure of magnetometer towfish

下载: 全尺寸图片幻灯片

图 2 磁探拖体使用的拖体坐标系

Figure 2. Coordinate system of magnetometer towfish

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图 3 航空平台校准圈示意图

Figure 3. Aircraft platform calibration circle

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图 4 地面校准示意图

Figure 4. Ground calibration

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图 5 地面校准补偿前后结果图

Figure 5. Results of ground calibration before and after compensation

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图 6 动态作业补偿前后结果图

Figure 6. Results of dynamic operation before and after compensation

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表 1 试验基本情况

Table 1. Experimental situation

磁场梯度/(nT/m)	参数编号	补偿前标准差	试验情况
0.2	A1	4.725	3组机动
	A2	4.756	3组机动
	A3	4.712	5组机动
	A4	4.817	5组机动
0.1	B1	4.799	3组机动
0.1	B2	4.782	5组机动
1.5	C1	5.108	5组机动
0.5	D1	4.992	5组机动

下载: 导出CSV

表 2 地面校准试验结果

Table 2. Experimental result of ground calibration

场地梯度/(nT/m)	参数编号	补偿后标准差	改善比
0.2	A1	0.187	25.160
	A2	0.219	21.617
	A3	0.241	19.481
	A4	0.265	18.132
0.1	B1	0.176	27.175
0.1	B2	0.162	29.382
1.5	C1	1.275	3.696
0.5	D1	0.310	16.092

下载: 导出CSV

参考文献(11)

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