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<p>To assess the performance of the PPP-B2b service, most existing studies typically store real-time PPP-B2b messages and leverage them to acquire precise satellite orbits and clock offsets. However, they often overlook potential interferences, such as occlusions and receiving delays, that may occur in real-time scenarios. Consequently, these studies fail to fully capture the real-time positioning capabilities of PPP-B2b. This study assesses real-time static and kinematic precise point positioning (PPP) solutions based on BDS-3 and BDS-3/GPS. The findings reveal that both BDS-3 and GPS systems demonstrate high signal matching with PPP-B2b, resulting in quicker convergence in real-time static PPP solutions and maintaining stable positioning accuracy without divergence. Particularly noteworthy is the higher precision observed in the north–south direction. Under BDS-3, the convergence time is approximately 26&#xa0;min, with horizontal accuracy below 0.2&#xa0;m, vertical accuracy below 0.4&#xa0;m. Utilizing BDS-3/GPS reduces the convergence time by roughly 30% while maintaining comparable accuracy (horizontal accuracy below 0.2&#xa0;m, vertical accuracy below 0.4&#xa0;m). In real-time kinematic PPP solutions, based on the PPP-B2b algorithm, decimeter-level accuracy is attained, particularly in the north and south directions. The convergence time is approximately 1&#xa0;h and 28&#xa0;min, longer than real-time static PPP solutions, due to clock system biases. However, within the time periods after convergence and with no divergence, real-time kinematic PPP solutions achieve horizontal accuracy of 4&#xa0;cm and vertical accuracy of 8&#xa0;cm.</p>

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Performance assessment of BeiDou-3 PPP-B2b real time pre-cise point positioning

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年5月19日

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  • Yu Lin,
  • Laiyong Song,
  • Jiaqi Shen,
  • Zelin Mu

摘要

To assess the performance of the PPP-B2b service, most existing studies typically store real-time PPP-B2b messages and leverage them to acquire precise satellite orbits and clock offsets. However, they often overlook potential interferences, such as occlusions and receiving delays, that may occur in real-time scenarios. Consequently, these studies fail to fully capture the real-time positioning capabilities of PPP-B2b. This study assesses real-time static and kinematic precise point positioning (PPP) solutions based on BDS-3 and BDS-3/GPS. The findings reveal that both BDS-3 and GPS systems demonstrate high signal matching with PPP-B2b, resulting in quicker convergence in real-time static PPP solutions and maintaining stable positioning accuracy without divergence. Particularly noteworthy is the higher precision observed in the north–south direction. Under BDS-3, the convergence time is approximately 26 min, with horizontal accuracy below 0.2 m, vertical accuracy below 0.4 m. Utilizing BDS-3/GPS reduces the convergence time by roughly 30% while maintaining comparable accuracy (horizontal accuracy below 0.2 m, vertical accuracy below 0.4 m). In real-time kinematic PPP solutions, based on the PPP-B2b algorithm, decimeter-level accuracy is attained, particularly in the north and south directions. The convergence time is approximately 1 h and 28 min, longer than real-time static PPP solutions, due to clock system biases. However, within the time periods after convergence and with no divergence, real-time kinematic PPP solutions achieve horizontal accuracy of 4 cm and vertical accuracy of 8 cm.