Development of a Network-Based RTK-GPS Positioning System using FKP via the Internet

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概要

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• Real-time kinematic GPS (RTK-GPS) is a real-time satellite positioning system. Using RTK-GPS, the horizontal and vertical positions of an object can be determined to within a few centimeters. However, Japan currently lacks the essential infrastructure to support the consistent delivery of data. The authors developed and tested a FKP-method network-based RTK-GPS (FKP-RTK) positioning using the area correction parameter (FKP) via the Internet. We studied FKP-RTK positioning at a fixed point, while varying the position of the GPS reference station located inside the station network area. Both the precision and accuracy of the FKP-RTK positioning were confirmed to be independent of the position of the primary GPS reference station (PRS). Using an Internet line, as compared with a public phone line, comparable results were achieved. The degradation in positioning precision when compared to RTK-GPS positioning (non network-based) is not especially pronounced, and we can see that the results of the network-based RTK-GPS positioning correction results are high.

著者

• Yasuda Akio

  Tokyo Univ. Of Marine Sci. And Technol.

• Yasuda Akio

  Tokyo University Of Marine Science And Technology

• FAN Chunming

  Tokyo University of Marine Science and Technology

• OKAMOTO Osamu

  Ibaraki College of Technology

• NAMIE Hiromune

  The National Defense Academy

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