Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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An Effective Real-Time Integer Ambiguity Resolution Method Using GPS Dual Frequency

GPS 이중주파수 측정치를 이용한 효율적인 실시간 미지정수 결정방법

  • Son, Seok-Bo (Dept. of Electronic Engineering, Chungnam National University) ;
  • Park, Chansik (Dept. of Electrical Elecronic Engineering, Chungbuk National University) ;
  • Lee, Sang-Jeong (Dept. of Electronic Engineering, Chungnam National University)
  • Published : 2000.08.01
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Abstract

A real-time precise positioning is possible with GPS carrier phase measurements with efficient integer ambiguity resolution techniques. It is known that more reliable and fast integer ambiguity resolution is possi-ble as the number of measurements increases. Most precise positioning systems use dual frequency measurements and the wide-lnae technique to resolve integer ambiguity. The wide-lane technique magnifies the measurement noise while it reduces the number of candidates to be examined. In this paper a new integer ambiguity resolution method using dual frequency is proposed The proposed method utilizes the relationship between the wide-lane single frequency and the narrow-lane ambiguities to resolve narrow-lane integer ambiguity after fixing the wide-lane integer ambiguity. Experiments with real data show that the proposed method gives fast and reliable results.

Keywords

References

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