Geomagnetic gradient tensor invariant rapid matching navigation method fusing MAGCOM and ICCP algorithms
The invention provides a geomagnetic gradient tensor invariant rapid matching navigation method fusing MAGCOM and ICCP algorithms. Through the steps of pre-matching, rough matching, Hausdorff distance calculation, contour line matching, multiple iterations and the like, matching is carried out by ut...
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Main Authors | , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
14.11.2023
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Abstract | The invention provides a geomagnetic gradient tensor invariant rapid matching navigation method fusing MAGCOM and ICCP algorithms. Through the steps of pre-matching, rough matching, Hausdorff distance calculation, contour line matching, multiple iterations and the like, matching is carried out by utilizing geomagnetic gradient tensor invariants. According to the method, the geomagnetic gradient tensor invariant is used as a matching object, the geomagnetic gradient tensor invariant reference map and the reference track output by the inertial navigation system are combined for multiple times of iterative matching, meanwhile, the real-time performance of the matching algorithm is improved by adopting the principle of a digital register, the matching does not need the participation of a geomagnetic normal field model, and the matching efficiency is improved. Theoretically, the matching precision is irrelevant to the precision of a normal field model.
本发明提出了一种融合MAGCOM与ICCP算法的地磁梯度张量不变量快速匹配导航方法。通过预匹配、粗匹配、Hausdorff距 |
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AbstractList | The invention provides a geomagnetic gradient tensor invariant rapid matching navigation method fusing MAGCOM and ICCP algorithms. Through the steps of pre-matching, rough matching, Hausdorff distance calculation, contour line matching, multiple iterations and the like, matching is carried out by utilizing geomagnetic gradient tensor invariants. According to the method, the geomagnetic gradient tensor invariant is used as a matching object, the geomagnetic gradient tensor invariant reference map and the reference track output by the inertial navigation system are combined for multiple times of iterative matching, meanwhile, the real-time performance of the matching algorithm is improved by adopting the principle of a digital register, the matching does not need the participation of a geomagnetic normal field model, and the matching efficiency is improved. Theoretically, the matching precision is irrelevant to the precision of a normal field model.
本发明提出了一种融合MAGCOM与ICCP算法的地磁梯度张量不变量快速匹配导航方法。通过预匹配、粗匹配、Hausdorff距 |
Author | WU LIHUA HUANG YU ZHANG LITING LIU YONGJUN CHEN XINTONG NIE ZIYU |
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DocumentTitleAlternate | 一种融合MAGCOM与ICCP算法的地磁梯度张量不变量快速匹配导航方法 |
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Snippet | The invention provides a geomagnetic gradient tensor invariant rapid matching navigation method fusing MAGCOM and ICCP algorithms. Through the steps of... |
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SubjectTerms | GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING |
Title | Geomagnetic gradient tensor invariant rapid matching navigation method fusing MAGCOM and ICCP algorithms |
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