Multipath and Its Manifestations in the Real Environment of Geodetic Practice

Abstract

The paper is concerned with the negative manifestation of the multipath factor in application of the GNSS technology. It points to manifestations of the multipath effect in a specific situation of surveying practice. The evaluation is based on a model situation under intentionally deteriorated observational conditions by the presence of a building.

System monitorowania położenia koparek i wielonaczyniowych węgla brunatnego i bezpieczeństwa ich pracy

“…• Measuring segment (data collection) (GNSS receivers, receivers and sensors, control unit) [11], [12] By surveying measurements directly on the excavator, the parameters for the derivation of mathematical relations necessary for the calculation of the spatial position of the center of the excavator wheel axis were determined [7]. These are mainly the distances of the individual measuring instruments (GNSS, inclinometers, inclement speed sensors) in relation to each other and to some mechanical "nodes" of the excavator structure [9]. Subsequently, an algorithm [8] was developed that incorporated the results of the measurements of the individual measuring and gauging instruments and allowed calculations of the spatial position of the wheel centre in any general position of the excavator [10].…”

Considering Variances of Quasi-Random Effects in Relative GPS Positioning Performed During Daytime and Nighttime Periods – A Novel Two-Stage Approach

“…But, in each of them these effects were treated individually and a reader can be referred to the recent ones, such as, e.g. Hu et al (2015), Deng et al (2016), Elsobeiey and El-Diasty (2016), Jadviščok et al (2016), Klos et al (2018), Zhou et al (2018), Anđić, (2019b), Han et al (2019), Juni and Rózsa (2019), Kallio et al (2019).…”