Volume 36 Issue 11
Nov.  2011
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YI Zhonghai, ZHU Jianjun, CHEN Yongqi, DAI Wujiao. Cycle-Slip Detection and Correction Algorithm for Real-Time PPP[J]. Geomatics and Information Science of Wuhan University, 2011, 36(11): 1314-1319.
Citation: YI Zhonghai, ZHU Jianjun, CHEN Yongqi, DAI Wujiao. Cycle-Slip Detection and Correction Algorithm for Real-Time PPP[J]. Geomatics and Information Science of Wuhan University, 2011, 36(11): 1314-1319.
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Cycle-Slip Detection and Correction Algorithm for Real-Time PPP

  • 1Department of Survey Engineering and Geomatics,Central South University,South Lushan Road,Changsha 410083,China;2Department of Land Surveying and Geoinformatics,Hong Kong Polytechnic University, Hung Hom,Kowloon,Hong Kong,China

Funds: 国家自然科学基金资助项目(40704002);香港研究资助委员会基金资助项目(PolyU5132/05E)
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  • Received Date: September 14, 2011
  • Published Date: November 04, 2011
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    • Abstract
  • A cycle-slip detection and correction algorithm suitable for real-time precise point positioning(PPP) was proposed.There are three main steps in the algorithm: ① Possible cycle-slip affected satellites and cycle-slip free satellites were determined using M-W and ionosphere residual observation combination;② Cycle slip detection and correction was conducted for possible cycle-slip affected satellites using cycle-slip free satellites information and observations of current epoch and previous one or several epoch(s),based on the new developed epoch-differenced cycle slip detection model;③ Refinement process for cycle slip detection failed satellites to try to repair cycle slip.The experimental results show that the new algorithm can detect and repair cycle slip correctly and efficiently in real time PPP.
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