Influence of Distance between Reference Station and User Station on DGPS Positioning Accuracy

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  • 基準局・移動局間距離とDGPS測位精度について
  • キジュンキョク イドウキョクカン キョリ ト DGPS ソクイ セイド ニ ツ

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Abstract

Experiment of differential GPS (DGPS) to study the effects of distance between a reference station set in Yokohama and user stations, was conducted in a fixed point close to the reference station and domain five ports using an observation ship in mooring condition at the port piers. The distance varies from 3m (Yokohama) to 945km (Nagasaki). The relationship between the DGPS positioning accuracy and the distance is reported in this paper. The DGPS correction here was made using the pseudo range correction value by a post processing. It is concluded from this experiment results that the definite effects of correction by DGPS at each experiment point were confirmed, and the DGPS positioning error increases with the increasement of distance from the reference station.

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