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

  • 제34권2호
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  • Pages.48-55
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  • 2006
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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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실시간 동적 차분 위성항법을 위한 위치영역 Hatch 필터의 성능 해석

Analyzing Position-Domain Hatch Filter for Real-Time Kinematic Differential GNSS

  • 발행 : 2006.02.28
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⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 실시간 동적 차분 위성항법과 관련하여 근래에 제안된 위치영역 Hatch 필터의 오차 특성을 해석하였다. 위치영역 Hatch 필터에 의하여 생성되는 잉여값 순열 (residual sequence)이 고장검출에 유용한 백색잡음 (white noise) 특성을 가짐을 보였으며, 위치영역 Hatch 필터는 기존에 알려진 위치영역 Kalman 형 필터에 비하여 전 상태 추정치 (a priori state estimate) 의 정확도 면에서 오히려 더 우수함을 해석적으로 보였다. 이와 같은 특성에 의하면 차분 위성항법의 다양한 응용분야에서 위치영역 Hatch 필터가 고장검출 및 정밀측위에 효율적으로 사용될 수 있음을 알 수 있다.

Performance characteristics of the position-domain Hatch filter is analyzed for differential global navigation satellite systems. It is shown that the position-domain Hatch filter generates white measurement residual sequences, which is beneficial property for fault detection. It is also shown that the position-domain Hatch filter yields more accurate a priori state estimate than the position-domain Kalman-type filter. Thus, it can be concluded that the position-domain Hatch filter is beneficial in wide application areas where fault-tolerance and accuracy are required at the same time.

키워드

참고문헌

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피인용 문헌

  1. Lever Arm Error Compensation of GPS/INS Integrated Navigation by Velocity Measurements vol.41, pp.6, 2013, https://doi.org/10.5139/JKSAS.2013.41.6.481