- 专利标题： Correlating overlapping magnetic measurement data from multiple magnetic navigation devices and updating a geomagnetic map with that data
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申请号： US17494454申请日： 2021-10-05
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公开(公告)号： US11680802B2公开(公告)日： 2023-06-20
- 发明人: Alexandre Toutov , Maryna Mukhina , Svitlana Ilnytska
- 申请人： Astra Navigation, Inc.
- 申请人地址： US CA Escondido
- 专利权人： Astra Navigation, Inc.
- 当前专利权人： Astra Navigation, Inc.
- 当前专利权人地址： US CA Escondido
- 主分类号： G01C21/00
- IPC分类号： G01C21/00 ; G01C21/08 ; G01S19/48
摘要：
In one embodiment, a method includes receiving from one or more magnetic-measurement devices one or more trajectories comprising magnetic measurements in an area collected by the magnetic-measurement devices over a period of time. The method also includes performing one or more correlation analyses on at least some of the trajectories to determine similarities in the trajectories. The method also includes storing portions of the trajectories that have determined similarities below predetermined thresholds for incorporation into a master geomagnetic map.
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