Recursive Filtering and GPS Positioning

Michiyoshi Fujiwara，Sueo Sugimoto
[ Link to J-Stage ]

Abstract – In this paper we present two estimation algorithms of static relative positioning by GPS, where the vector between two antenna stations is determined. There are two important types of GPS observables; pseudo-ranges and carrier phases. The first algorithm here is to utilize the double difference of the carrier phases. And the second algorithm for relative positioning is shown based upon the difference of the estimates for point positioning by using the pseudo-ranges, specially, applying Dilution of Precision(DOP). Finally, The experimental results for estimation of the baseline length are shown by using real receiver data obtained at two static points.