Generally, the code pseudo-range error by multipath signals has the periodic property in static user which can be shown under ±15 meters. The effects of the multipath error may be complicated in the land transportation environment. Therefore, analysis of effects of the multipath signals is required for the precise positioning on the land transportation environments. In this paper, the number of visible satellites, GPS signal strength, doppler frequency, code pseudo-range and carrier phase pseudo-range are analyzed for the dynamic user using the measurements by Ublox navigation-grade receiver.

Keywords: multipath, land transportation, bias, pseudo-range