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Implementation of Propagation delay estimation model of medium frequency for positioning

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2009, 14(2), pp.111-118
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science

Donghui Yu 1

1부산가톨릭대학교

Accredited

ABSTRACT

Against Anomaly of GPS, there are several projects of independent satellite navigation systems like Galileo of Europe and QZSS of Japan and modernization of terrestrial navigation system like Loran. In domestic, the need of independent navigation system was proposed and DGPS signal was nominated as the possible substitute. The DGPS signal uses medium frequency, which travels through the surface and cause the additional delay rather than the speed of light according to conductivities and elevations of the irregular terrain. The similar approach is Locan-C. Loran-C has been widely used as the maritime location system. Loran-C uses the ASF estimation method and provides more precise positioning. However there was rarely research on this area in Korea. Therefore, we introduce the legacy guaranteed model of additional delay(ASF) and present the results of implementation. With the comparison of the original Monteath results and BALOR results respectively, we guarantee that the implementation is absolutely perfect. For further works, we're going to apply the ASF estimation model to Korean DGPS system with the Korean terrain data.

Citation status

* References for papers published after 2022 are currently being built.