| 摘要 |
This in-vehicle apparatus (200) compares positioning results (authentication-prioritizing positioning results) that use authenticated GPS satellites (2) in a priority manner, and positioning results (signal-quality-prioritizing positioning results) that use signals received from GPS satellites having a favorable signal quality regardless of whether same has been authenticated. Also, in the case that the location indicated by the signal-quality-prioritizing positioning results is within a certain distance (for example 100 m) from the location indicated by the authentication-prioritizing positioning results, position data indicated by the signal-quality-prioritizing positioning results are used as the current position. |
