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Precise Point Positioning with low-cost GNSS receivers is attractive for numerous applications, as it can provide centimeter-level positioning without the exchange of raw measurements from a reference station. However, pseudorange multipath has to be accurately considered for a reliable ambiguity fixing. In this paper, we derive a precise model for the pseudorange multipath from the received signal,...
Real-Time Kinematic (RTK) positioning with low-cost mass-market Global Navigation Satellite System (GNSS) receivers and antennas is attractive for precise landing of Unmanned Air Vehicles (UAV). Code mültipath mitigation and a reliable resolütion of the carrier phase integer ambigüities are two challenges. In this paper, we describe an RTK method which estimates a code mültipath parameter for each...
The knowledge of the temperatures of materials above the melting point is of interest in the metal working industry, e.g., in welding to observe the weld pool formation. Therefore, procedures to determine the temperature also in the liquid phase are significant and necessary. In this paper, a spectroscopic method is presented to determine the surface temperature of liquid S235. A liquid metal-pool...
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