The Propagation Characteristic of DGPS Correction Data Signal at Inland Sea - Propagation Characteristic on LF/MF Band Radio Wave

Users of the Inland Sea require high position accuracy, which is 5 m (2 drms) or less. Therefore the position accuracy of standalone GPS is insufficient. Consequently, it is necessary for a navigator sailing the Inland Sea to use DGPS. The authors executed numerical simulation of the propagation characteristic on the extended line of bridge pier at opposite side from DGPS station, and already confirmed that bit error in DGPS correction data signal occurs, and that correction data could not form with bit error. Furthermore, they carried out numerical simulation of the propagation characteristic of DGPS correction data signal received at sailing through center of the bridge, and solved receiving condition of DGPS correction data signal before and after passing through the bridge. In this paper, the authors inspected results of electric field intensity simulation for oversea and overland propagation on some sea area of the Inland Sea and measured results of electric field intensity for DGPS correction data signal. They evaluated the possibility of abnormal propagation comprehensively.

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  • English

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  • Accession Number: 01515767
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 25 2014 9:15AM