Patent ID: 11899117
Assignee: NEC SOLUTION INNOVATORS, LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. A moving body positioning method comprising:
acquiring observation data that is acquired from a GNSS signal transmitted from each of one or more satellites and received by a GNSS receiver included in a moving body and that is observation data corresponding to each of the satellites;
acquiring external data that is predetermined data other than the observation data;
detecting multipath, with respect to an observation data group that is a set of pieces of the observation data respectively corresponding to the satellites, by determining whether each piece of the observation data in the observation data group is the multipath on the basis of a blocked range with respect to the GNSS signals in the moving body or an observation status of the GNSS signals in a different station that is a receiver station other than the moving body, the blocked range or the observation status being acquired by an analysis of the external data; and
performing positioning calculation after selection of a satellite to be used or a satellite to be excluded on the basis of a result of the multipath detection, acquiring observation data, acquiring external data, detecting the multipath, and performing position calculation being performed by an information processing device,
wherein detecting the multipath comprises:
assigning, to at least observation data included in the observation data group and determined to be the multipath, a predetermined index to be a determination condition for invalidity of the observation data.