MULTIPATH DETECTION DEVICE, SIGNAL PROCESSING DEVICE, GNSS RECEIVER, INFORMATION TERMINAL DEVICE FOR GNSS RECEIVER, MULTIPATH DETECTION METHOD AND PROGRAM THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a simple and reliable way to identify multipath signals.;SOLUTION: A multipath detection device 300 includes; a correlation value storage unit 301 which stores a plurality of correlation values generated by each of correlators 31 during a prescribed period; evaluation value computation units 302, 303 which compute a first evaluation value σE representing dispersion of correlation values on the early phase side of a peak phase and a second evaluation value σL representing dispersion of correlation values on the late phase side of the peak phase; an evaluation value comparator 304 which compares the first evaluation value σE and the second evaluation value σL; and a multipath assessment unit 305 which determines presence or absence of multipath signals based on the result of the comparison by the evaluation comparison unit 304.;COPYRIGHT: (C)2013,JPO&INPIT