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公开(公告)号：US10852444B2
公开(公告)日：2020-12-01
申请号：US15843002
申请日：2017-12-15
Applicant: Google LLC
Inventor： Fred P. Pighin , Daniel Joseph Filip , Scott Ettinger , Bryan M. Klingner , David R. Martin
Abstract: A position fix identifying a geographic location of a receiver is received. The position fix was generated using signals received at the receiver from respective high-altitude signal sources (such as satellites). Imagery of a geographic area that includes the geographic location is also received. The imagery is automatically processed to determine whether one or more of the high-altitude signal sources were occluded from the geographic location when the position fix was generated. In response to determining that one or more of the high-altitude signal sources were occluded from the geographic location when the position fix was generated, the position fix is identified as being potentially erroneous.
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公开(公告)号：US20180172839A1
公开(公告)日：2018-06-21
申请号：US15843002
申请日：2017-12-15
Applicant: Google LLC
Inventor： Fred P. Pighin , Daniel Joseph Filip , Scott Ettinger , Bryan M. Klingner , David R. Martin
Abstract: A position fix identifying a geographic location of a receiver is received. The position fix was generated using signals received at the receiver from respective high-altitude signal sources (such as satellites). Imagery of a geographic area that includes the geographic location is also received. The imagery is automatically processed to determine whether one or more of the high-altitude signal sources were occluded from the geographic location when the position fix was generated. In response to determining that one or more of the high-altitude signal sources were occluded from the geographic location when the position fix was generated, the position fix is identified as being potentially erroneous.
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