Target magnetic moment orientation estimation method based on full magnetic gradient orthonormal basis function
Magnetic anomaly detection (MAD) is an effective method to detect the existence and localization of magnetic targets. Magnetic signal processing technology can extract target signals from complex background noise. However, traditional magnetic signal processing methods cannot greatly improve the sig...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2022-03-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/9.0000282 |
| _version_ | 1811260318474567680 |
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| author | Yijie Qin Maobin Li Keyan Li Yang Pan Xiaofei Yang Jun Ouyang |
| author_facet | Yijie Qin Maobin Li Keyan Li Yang Pan Xiaofei Yang Jun Ouyang |
| author_sort | Yijie Qin |
| collection | DOAJ |
| description | Magnetic anomaly detection (MAD) is an effective method to detect the existence and localization of magnetic targets. Magnetic signal processing technology can extract target signals from complex background noise. However, traditional magnetic signal processing methods cannot greatly improve the signal-to-noise ratio (SNR) while also restoring information concerning the target. This is because the main existing method to calculate a target’s magnetic moment requires a pure target signal. Our research regarding the full magnetic gradient orthonormal basis function (FMG-OBF) addresses the problem of low SNRs for the target magnetic anomaly (TMA) signal. However, this method can only detect the presence of the target and cannot obtain the magnetic moment characteristics of the target. Benefiting from the FMG tensor, which contains large amounts of spatial magnetic field information, this paper is devoted to characterizing TMA in different orientations from the signal energy point of view. We analyze the influences of the target magnetic moment’s variation on the energy components of the TMA signal in various orientations, and further propose a target magnetic moment orientation estimation method. Compared with the traditional signal processing method, the proposed method can estimate the magnetic moment orientation of the target while greatly improving the SNR. Therefore, this method has significant application potential for the classification and identification of weak TMA signals in MAD. |
| first_indexed | 2024-04-12T18:45:39Z |
| format | Article |
| id | doaj.art-d1a92ee3d38f42f3a4887cb959c6e1d9 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-12T18:45:39Z |
| publishDate | 2022-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-d1a92ee3d38f42f3a4887cb959c6e1d92022-12-22T03:20:37ZengAIP Publishing LLCAIP Advances2158-32262022-03-01123035035035035-510.1063/9.0000282Target magnetic moment orientation estimation method based on full magnetic gradient orthonormal basis functionYijie Qin0Maobin Li1Keyan Li2Yang Pan3Xiaofei Yang4Jun Ouyang5School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, ChinaMagnetic anomaly detection (MAD) is an effective method to detect the existence and localization of magnetic targets. Magnetic signal processing technology can extract target signals from complex background noise. However, traditional magnetic signal processing methods cannot greatly improve the signal-to-noise ratio (SNR) while also restoring information concerning the target. This is because the main existing method to calculate a target’s magnetic moment requires a pure target signal. Our research regarding the full magnetic gradient orthonormal basis function (FMG-OBF) addresses the problem of low SNRs for the target magnetic anomaly (TMA) signal. However, this method can only detect the presence of the target and cannot obtain the magnetic moment characteristics of the target. Benefiting from the FMG tensor, which contains large amounts of spatial magnetic field information, this paper is devoted to characterizing TMA in different orientations from the signal energy point of view. We analyze the influences of the target magnetic moment’s variation on the energy components of the TMA signal in various orientations, and further propose a target magnetic moment orientation estimation method. Compared with the traditional signal processing method, the proposed method can estimate the magnetic moment orientation of the target while greatly improving the SNR. Therefore, this method has significant application potential for the classification and identification of weak TMA signals in MAD.http://dx.doi.org/10.1063/9.0000282 |
| spellingShingle | Yijie Qin Maobin Li Keyan Li Yang Pan Xiaofei Yang Jun Ouyang Target magnetic moment orientation estimation method based on full magnetic gradient orthonormal basis function AIP Advances |
| title | Target magnetic moment orientation estimation method based on full magnetic gradient orthonormal basis function |
| title_full | Target magnetic moment orientation estimation method based on full magnetic gradient orthonormal basis function |
| title_fullStr | Target magnetic moment orientation estimation method based on full magnetic gradient orthonormal basis function |
| title_full_unstemmed | Target magnetic moment orientation estimation method based on full magnetic gradient orthonormal basis function |
| title_short | Target magnetic moment orientation estimation method based on full magnetic gradient orthonormal basis function |
| title_sort | target magnetic moment orientation estimation method based on full magnetic gradient orthonormal basis function |
| url | http://dx.doi.org/10.1063/9.0000282 |
| work_keys_str_mv | AT yijieqin targetmagneticmomentorientationestimationmethodbasedonfullmagneticgradientorthonormalbasisfunction AT maobinli targetmagneticmomentorientationestimationmethodbasedonfullmagneticgradientorthonormalbasisfunction AT keyanli targetmagneticmomentorientationestimationmethodbasedonfullmagneticgradientorthonormalbasisfunction AT yangpan targetmagneticmomentorientationestimationmethodbasedonfullmagneticgradientorthonormalbasisfunction AT xiaofeiyang targetmagneticmomentorientationestimationmethodbasedonfullmagneticgradientorthonormalbasisfunction AT junouyang targetmagneticmomentorientationestimationmethodbasedonfullmagneticgradientorthonormalbasisfunction |