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A New Method to Accelerate PPP Convergence Time by using a Global Zenith Troposphere Delay Estimate Model

  • Yibin Yao (a1) (a2), Chen Yu (a1) and Yufeng Hu (a1)
Abstract

This paper presents a new algorithm to accelerate Precise Point Positioning (PPP) convergence. The main idea is to consider the station tropospheric zenith total delay, which is obtained by a global zenith troposphere delay estimate model, as virtual observation and combine it with phase and pseudo-range observations to formulate observation equations. Without relying on any other external enhancement information, it only requires four satellites to quickly complete the positioning with centimetre-level accuracy. Compared with the conventional method, the new one brings about 15% improvement in convergence time.

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Corresponding author
(E-mail: ybyao@whu.edu.cn)
References
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The Journal of Navigation
  • ISSN: 0373-4633
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