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1 results

  • On-line Detection of Tracking Loss in Aviation GPS Receivers Using Frequency-Lock Loops

  • Hyoungmin So, Sujin Choi, Sanghoon Jeon, Changdon Kee
  • Journal:
    The Journal of Navigation / Volume 62 / Issue 2 / April 2009
    Published online by Cambridge University Press:
    12 March 2009, pp. 263-281
    Print publication:
    April 2009

  • For high-precision real-time kinematics (RTK) and safety-of-life Global Navigation Satellite Systems (GNSS), it is critical to track the carrier reliably without interruptions. We develop hardware-oriented robust on-line cycle slip and loss detection logic for a single-frequency stand-alone aviation receiver. The moving average statistics of time-differenced frequency-lock loop (FLL) are shown to provide a robust and fixed detection threshold for cycle loss detection. A Monte-Carlo simulation shows that the detection performance remains robust when aviation dynamics from minimum operational performance standard (MOPS) are added to a simulated strong scintillation.