Magnetic scalar triangulation and ranging system for autonomous underwater vehicle based defection, localization and classification of magnetic mines

Wiegert, R. F.; Purpura, J.W.

doi:10.1109/oceans.2004.1405589

Cited by 14 publications

(17 citation statements)

References 4 publications

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“…Extensive field tests and simulations of prototype STAR gradiometers have verified the validity of the UBV-STAR concept for fully autonomous guidance of UBVs to mine-like targets [1,2,4,6,7].…”

Section: A Background Of R and D Effortmentioning

confidence: 84%

“…The 3-component partial gradient contractions provide a particularly simple and robust set of guidance parameters for UBVs homing in magnetic targets [4][5][6][7]. However, the partial contraction's lack of true rotational invariance limits its usefulness for accurate and efficient DLC of magnetic targets [6][7][8].…”

Section: The Gradient Contractionmentioning

confidence: 99%

“…However, the partial contraction's lack of true rotational invariance limits its usefulness for accurate and efficient DLC of magnetic targets [6][7][8].…”

Section: The Gradient Contractionmentioning

confidence: 99%

“…Field tests and theory indicate that an optimally effective STAR system should be based upon rotationally invariant and robust total gradient contraction scalar parameters [7,8].…”

Section: The Gradient Contractionmentioning

confidence: 99%

“…Fig. 5 shows magnetic target homing paths that are generated by application of a 3-D analogue of the UBV-STAR target-homing algorithm [6,7]. At any point along a path a particularly simple 3-D STAR method can be applied to determine r and M [8].…”

Section: The Gradient Contractionmentioning

confidence: 99%

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Generalized Magnetic Gradient Contraction Based Method for Detection, Localization and Discrimination of Underwater Mines and Unexploded Ordnance

Wiegert

Oeschger²

Proceedings of OCEANS 2005 MTS/IEEE

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We report significant progress toward full development of a unique magnetic-gradienttensor-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 twodimensional (2-D) magnetic target-homing concept for fully autonomous localization of mines using crawler-type AUVs. However, the simple 2-D STAR approach cannot effectively discriminate between magnetic clutter and mine-like target signatures.Improved, 3-D 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.

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Section: A Background Of R and D Effortmentioning

confidence: 84%

Section: The Gradient Contractionmentioning

confidence: 99%

“…However, the partial contraction's lack of true rotational invariance limits its usefulness for accurate and efficient DLC of magnetic targets [6][7][8].…”

Section: The Gradient Contractionmentioning

confidence: 99%

“…Field tests and theory indicate that an optimally effective STAR system should be based upon rotationally invariant and robust total gradient contraction scalar parameters [7,8].…”

Section: The Gradient Contractionmentioning

confidence: 99%

Section: The Gradient Contractionmentioning

confidence: 99%

See 3 more Smart Citations

Generalized Magnetic Gradient Contraction Based Method for Detection, Localization and Discrimination of Underwater Mines and Unexploded Ordnance

Wiegert

Oeschger²

Proceedings of OCEANS 2005 MTS/IEEE

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Rebar corrosion monitoring using magnetic gradient and partial modulus

2020

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Magnetic signature reproduction of ferromagnetic ships at arbitrary geographical position, direction and depth using a multi-dipole model

Woloszyn,

Tarnawski

2023

Sci Rep

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The reproduction of magnetic signatures is an important issue concerning the safety of ship traffic, as well as the identification and classification of vessels. Moreover, military applications of magnetic signatures and their reproduction refer to the activation or protection against activation of magnetic naval mines. Previous works on this subject focused on recording and replicating the signatures under the same conditions as those under which they were measured, e.g., on the same ship courses. In this article, much greater capabilities of the multi-dipole model are presented, including simultaneous identification of permanent and induced magnetism. Determining the dipole values using the data from cardinal directions gives the possibility of determining the magnetic field density at any trajectory (position), direction, or depth, with further reconstruction of the entire magnetic field on the basis of residual measurements. For the purpose of this article, a numerical test model of a corvette-type ship has been modelled in Opera simulation software for different geographical positions. The synthetic data from the simulator served as the data source for determining the parameters of the multi-dipole model and the reference data for the verification of the signatures reconstructed for other positions, directions, and depths than those used to determine the model parameters. To determine all permanent magnetization components, data sets were used for two different values of the external magnetic field vertical component. Finally, as a culmination of the demonstration of model universality, the entire magnetic field around the ship was reproduced for different control points on Earth, and for different courses and depths. Investigating the possibility of reconstructing the magnetic signature at a different geographic location than the place where the measurement was made for model synthesis is the main original issue considered in this paper.

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Magnetic scalar triangulation and ranging system for autonomous underwater vehicle based defection, localization and classification of magnetic mines

Cited by 14 publications

References 4 publications

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

Rebar corrosion monitoring using magnetic gradient and partial modulus

Magnetic signature reproduction of ferromagnetic ships at arbitrary geographical position, direction and depth using a multi-dipole model

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