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1. (WO2015118819) NAVIGATION-MESSAGE-AUTHENTICATING POSITIONING DEVICE

Pub. No.:    WO/2015/118819    International Application No.:    PCT/JP2015/000251
Publication Date: Fri Aug 14 01:59:59 CEST 2015 International Filing Date: Thu Jan 22 00:59:59 CET 2015
IPC: G01S 19/21
G01S 19/03
G01S 19/28
Applicants: DENSO CORPORATION
株式会社デンソー
Inventors: KUMABE, Seigou
隈部 正剛
YAMASHIRO, Takahisa
山城 貴久
Title: NAVIGATION-MESSAGE-AUTHENTICATING POSITIONING DEVICE
Abstract:
This navigation-message-authenticating positioning device (200, 300) is provided with a satellite receiver (230, 330), an authentication information acquisition unit (S25), an authentication unit (S29-S31), and a positioning unit (S42). The navigation-message-authenticating positioning device (200, 300) is provided with: an evaluation value specifying unit (S3, S3a, S3b, S64, S83) that specifies a signal quality evaluation value; and a selection unit (S5, S41, S68, S85, S88) that selects an artificial satellite. The authentication information acquisition unit (S25) acquires authentication information. The authentication unit (S29-S31) performs authentication. The positioning unit (S42) determines the position of the navigation-message-authenticating positioning device (200, 300).