• Title/Summary/Keyword: Fault Detection of Onboard GNSS receiver

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Research on Algorithm and Operation Boundary for Fault Detection of Onboard GNSS Receiver (항공기 탑재용 GNSS 수신기 고장검출 알고리즘 및 운용범위 연구)

  • Nho, Hyung-Tae;Ahn, Jong-Sun;Sung, Sang-Kyung;Jun, Hyang-Sig;Yeom, Chan-Hong;Lee, Young-Jae
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.40 no.2
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    • pp.171-177
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    • 2012
  • In this paper, we proposed a algorithm and an operation boundary for fault detection of a onboard GNSS receiver. After aircraft exchange corrections computed by an aircraft receiver, a faulty aircraft receiver is detected by checking consistency of correction. For this purpose, PRC residual is used as the test statistic for fault detection of the onboard GNSS receiver. And operation boundaries are set by using DGPS position error increase with respect to the distance from a reference station. If the fault detection is performed by using aircraft only in operation boundary, the more accurate fault detection can be possible.