Generalized magnetic gradient contraction based method for detection, localization and discrimination of underwater mines and unexploded ordnance
Generalized magnetic gradient contraction based method for detection, localization and discrimination of underwater mines and unexploded ordnance
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DOI：
10.1109/oceans.2005.1639938
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发表时间：
2005-09
期刊：
影响因子：
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通讯作者：
R. Wiegert;J. Oeschger
中科院分区：
文献类型：
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作者：
R. Wiegert;J. Oeschger
我们报告了在全面开发用于磁性目标检测、定位和分类（DLC）的独特的基于磁梯度张量的“标量三角测量和测距（STAR）”方法方面取得的重大进展。 STAR 方法将磁张量转换为旋转不变的标量参数，这些参数实际上不受传感平台运动的影响。因此，STAR 方法特别适合使用高度移动传感平台（例如自主水下航行器 (AUV)）的磁性目标 DLC。先前的工作已经开发出二维 (2D) 磁性目标寻的概念，用于使用履带式 AUV 完全自主定位水雷。然而，简单的 2D STAR 方法无法有效区分磁杂波和雷状目标特征。改进的 3D 模拟表明 STAR 概念可应用于测量磁性物体的矢量位置和偶极子特征。新结果表明，改进的 STAR 系统将增强区分磁杂波和真实目标（例如磁性地雷和未爆炸弹药（UXO））的能力。因此，先进 STAR 概念的进一步发展将为高机动性自主传感平台（例如 AUV 和便携式系统）提供独特有效的磁性地雷和 UXO DLC 模式
We report significant progress toward full development of a unique magnetic-gradient-tensor-based "scalar triangulation and ranging (STAR)" method for detection, localization and classification (DLC) of magnetic targets. The STAR method converts magnetic tensors to rotationally invariant scalar parameters that are virtually unaffected by the effects of sensing platform motion. Thus, the STAR method is particularly appropriate for magnetic target DLC using highly mobile sensing platforms such as autonomous underwater vehicles (AUV). Prior work has resulted in development of a two-dimensional (2D) magnetic target-homing concept for fully autonomous localization of mines using crawler-type AUVs. However, the simple 2D STAR approach cannot effectively discriminate between magnetic clutter and mine-like target signatures. Improved, 3D simulations demonstrate that the STAR concept can be applied to measurements of the vector positions and dipole signatures of magnetic objects. The new results indicate that an improved STAR system will provide an enhanced capability for discrimination between magnetic clutter and real targets such as magnetic mines and Unexploded Ordnance (UXO). Consequently, further development of the advanced STAR concept will provide high-mobility autonomous sensing platforms (such as AUVs and man-portable systems) with a uniquely effective modality for DLC of magnetic mines and UXO