Nec Solution Innovators, Ltd.

Yuka Kanda

Ryo Miyamoto

Maho Kashiwagi

A positioning assistance apparatusthat improves the positioning accuracy includes an estimation unitthat estimates a delay amount (ionosphere delay amount or a troposphere delay amount) using a model generated through machine learning (an ionosphere delay model or a troposphere delay model) and a degree-of-precision calculation unitthat calculates a degree of precision with respect to a delay amount (an ionosphere delay amount or a troposphere delay amount) calculated through positioning computation, using the estimated delay amount.

Positioning assistance apparatus, positioning assistance method, and computer-readable recording medium

A moving body positioning system of the present invention includes: a GNSS receiver that is included in a moving body and that receives a GNSS signal transmitted from each of one or more satellites and acquires pieces of observation data respectively corresponding to the satellites; an external data acquisition means that acquires external data; a multipath detection means that detects multipath with respect to an observation data group; and a positioning calculation means that performs positioning calculation after a selection of a satellite to be used and a satellite to be excluded on the basis of a result of the multipath detection.

Moving body positioning system, method, and program

An information processing apparatus includes a positioning signal acquisition unit configured to acquire a positioning signal transmitted from a positioning satellite and a parameter acquisition unit configured to calculate a parameter preset based on the positioning signal. The information processing apparatus further includes an accuracy index calculation unit configured to calculate a positioning accuracy index from the parameter, and an output unit configured to output the positioning accuracy index.

Information processing apparatus, information processing system, information processing method, and non-transitory computer readable medium

An information processing apparatus includes a positioning signal acquisition unit configured to acquire a positioning signal transmitted from a positioning satellite and a parameter acquisition unit configured to acquire a parameter preset based on the positioning signal. The information processing apparatus further includes a storage unit configured to store a plurality of the parameters at a plurality of time points in a preset period, an accuracy index calculation unit configured to or calculating a positioning accuracy index from the plurality of stored parameters, and an output unit configured to output the positioning accuracy index.

A position measuring system includes: a connection destination candidate selecting unit which selects a connection destination candidate for each of a plurality of route coordinates on a route included in route information, on the basis of the distance between each of the plurality of route coordinates and reference stations included in a reference station list; and a connection destination information generating unit which determines a connection destination for which to acquire the correction information, on the basis of prescribed determining criteria, from among the connection destination candidates selected by the connection destination candidate selecting means, and generates and outputs connection destination information relating to the determined connection destination.

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Tokyo, Japan

Yuka Kanda