Ferromagnetic Mass Localization in Check Point Configuration Using a Levenberg Marquardt Algorithm
A detection and tracking algorithm for ferromagnetic objects based on a two stage Levenberg Marquardt Algorithm (LMA) is presented. The procedure is applied to localization and magnetic moment estimation of ferromagnetic objects moving in the vicinity of an array of two to four 3-axis magnetometers...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2009-11-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/9/11/8852/ |
| _version_ | 1798038398764580864 |
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| author | Tsuriel Ram-Cohen Eyal Weiss Nir Geron Roger Alimi |
| author_facet | Tsuriel Ram-Cohen Eyal Weiss Nir Geron Roger Alimi |
| author_sort | Tsuriel Ram-Cohen |
| collection | DOAJ |
| description | A detection and tracking algorithm for ferromagnetic objects based on a two stage Levenberg Marquardt Algorithm (LMA) is presented. The procedure is applied to localization and magnetic moment estimation of ferromagnetic objects moving in the vicinity of an array of two to four 3-axis magnetometers arranged as a check point configuration. The algorithms first stage provides an estimation of the target trajectory and moment that are further refined using a second iteration where only the position vector is taken as unknown. The whole procedure is fast enough to provide satisfactory results within a few seconds after the target has been detected. Tests were conducted in Soreq NRC assessing various check point scenarios and targets. The results obtained from this experiment show good localization performance and good convivial with “noisy” environment. Small targets can be localized with good accuracy using either a vertical “doorway” two to four sensors configuration or ground level two to four sensors configuration. The calculated trajectory was not affected by nearby magnetic interference such as moving vehicles or a combat soldier inspecting the gateway. |
| first_indexed | 2024-04-11T21:39:40Z |
| format | Article |
| id | doaj.art-af1229c3662d4ea28a97f956e4372c85 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T21:39:40Z |
| publishDate | 2009-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-af1229c3662d4ea28a97f956e4372c852022-12-22T04:01:39ZengMDPI AGSensors1424-82202009-11-019118852886210.3390/s91108852Ferromagnetic Mass Localization in Check Point Configuration Using a Levenberg Marquardt AlgorithmTsuriel Ram-CohenEyal WeissNir GeronRoger AlimiA detection and tracking algorithm for ferromagnetic objects based on a two stage Levenberg Marquardt Algorithm (LMA) is presented. The procedure is applied to localization and magnetic moment estimation of ferromagnetic objects moving in the vicinity of an array of two to four 3-axis magnetometers arranged as a check point configuration. The algorithms first stage provides an estimation of the target trajectory and moment that are further refined using a second iteration where only the position vector is taken as unknown. The whole procedure is fast enough to provide satisfactory results within a few seconds after the target has been detected. Tests were conducted in Soreq NRC assessing various check point scenarios and targets. The results obtained from this experiment show good localization performance and good convivial with “noisy” environment. Small targets can be localized with good accuracy using either a vertical “doorway” two to four sensors configuration or ground level two to four sensors configuration. The calculated trajectory was not affected by nearby magnetic interference such as moving vehicles or a combat soldier inspecting the gateway.http://www.mdpi.com/1424-8220/9/11/8852/magnetic moment localizationmagnetic sensorsLevenberg Marquardt Algorithm |
| spellingShingle | Tsuriel Ram-Cohen Eyal Weiss Nir Geron Roger Alimi Ferromagnetic Mass Localization in Check Point Configuration Using a Levenberg Marquardt Algorithm Sensors magnetic moment localization magnetic sensors Levenberg Marquardt Algorithm |
| title | Ferromagnetic Mass Localization in Check Point Configuration Using a Levenberg Marquardt Algorithm |
| title_full | Ferromagnetic Mass Localization in Check Point Configuration Using a Levenberg Marquardt Algorithm |
| title_fullStr | Ferromagnetic Mass Localization in Check Point Configuration Using a Levenberg Marquardt Algorithm |
| title_full_unstemmed | Ferromagnetic Mass Localization in Check Point Configuration Using a Levenberg Marquardt Algorithm |
| title_short | Ferromagnetic Mass Localization in Check Point Configuration Using a Levenberg Marquardt Algorithm |
| title_sort | ferromagnetic mass localization in check point configuration using a levenberg marquardt algorithm |
| topic | magnetic moment localization magnetic sensors Levenberg Marquardt Algorithm |
| url | http://www.mdpi.com/1424-8220/9/11/8852/ |
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