Flight Performance of a Dual One-Way Carrier Phase Ranging Instrument

이중단방향 반송파 거리측정기 비행성능 분석

  • 김정래 (한국항공대학교 항공우주 및 기계공학부)
  • Published : 2009.03.31

Abstract

One of the error sources for microwave ranging is the instability of the oscillator that drives the microwave signals. Dual one-way ranging (DOWR) minimizes the oscillator effect by combining two one-way carrier phase signals from two transmitter/receiver instrument. The DOWR is first implemented in the GRACE (Gravity Recovery and Climate Experiment) satellites. Direct evaluation of the DOWR is not possible due to its extremely high accuracy. The flight performance of the GRACE DOWR is analyzed by applying several indirect methods. Comparison with the design noise level is discussed.

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