한국항공우주학회지 (Journal of the Korean Society for Aeronautical & Space Sciences)

  • 제42권6호
  • /
  • Pages.505-514
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  • 2014
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  • 1225-1348(pISSN)
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  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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의사위성 항법시스템에서의 해수면 반사파가 미치는 영향 분석 및 대처방안에 대한 연구

A Study on the Effects and the Countermeasure of Sea Surface Reflection Waves in Pseudolite Navigation Systems

  • 투고 : 2014.03.05
  • 심사 : 2014.05.13
  • 발행 : 2014.06.01
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초록

본 논문은 의사위성 항법시스템을 이용하여 항공기, 선박 등에 정밀한 항법해를 제공할 경우 해수면의 반사파에 의한 영향으로 항법신호의 의사거리 추정 성능이 어떻게 변화하는지 분석하였다. 해수면 반사파의 영향을 최소화하기 위한 방안들로써 수신기 설계에 있어 상관기별 성능비교 분석을 통해 의사위성 항법시스템에 적절한 상관기를 제시하고자 하였으며, 다중 안테나 기법 사용을 제안하였다. 또한, 해수면 반사파를 회피하기 위한 가장 확실한 방안으로 송신소 위치 이동시의 실험값을 제시하여 해수면 반사파의 영향으로부터 항법 신호의 의사거리 추정 성능의 개선 정도를 분석하였다.

The effects of reflected wave of the sea on pseudolite ranging accuracy are analysed in this paper, when a pseudolite navigation system is used for wide area outdoor applications such as aircraft and vessels positioning. Methods for minimizing the influence of sea surface reflection wave were proposed. The methods include the appropriate correlator in pseudolite navigation system through the correlation performance comparison analysis in receiver design, the use of the technology of multiple antennas, and locating the transmitting station antenna on an appropriate position. From the results of experiments, the method of locating the antenna position shows the most reliable performance against the effect of surface reflection wave. The analysis results of the ranging accuracy improvement are addressed, when the multipath caused by sea surface reflection exists.

키워드

참고문헌

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피인용 문헌

  1. A Study on Navigation Performance Analysis Technique of Pseudolite Navigation Systems vol.42, pp.11, 2014, https://doi.org/10.5139/JKSAS.2014.42.11.947