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<p>This manuscript presents the suitability of the compact, low-cost, dual frequency GNSS modules (CLD) for GNSS precise points positioning (PPP) by comparing the&#xa0;results with simultaneously operating costly geodetic receivers using two CLD modules and two geodetic receivers. Online PPP is done from NRCan, Canada, using the <i>rapid</i>, <i>ultra-rapid,</i> and <i>final</i> IGS products. The results show the similar performance of all the hardware with the clear advantage of cost, size, and power requirements in case of the CLD modules; 3&#xa0;mm × 3&#xa0;mm × 10&#xa0;mm PPP position uncertainty with 95% confidence is achieved in latitude, longitude, and altitude respectively for an uBlox ZED F9P CLD module and similar performance for an NTLab 104v3 CLD module in GPS + GLONASS hybrid operation like the geodetic receivers. It is also observed that the GPS + GLONASS hybrid operation provides better performance than single-constellation operations, and the use of <i>final</i> IGS products marginally improves the solution quality. The results would be useful in implementing cost and power-efficient, precise GNSS PPP for relevant applications.</p>

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PPP Performance of Dual-Frequency, Compact, Low-Cost GNSS Modules: A Novel Study

  • 期刊论文

  • 发表日期：

    2025年2月7日

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  • Adebayo Segun Adewumi,
  • Somnath Mahato,
  • Susmita Samanta,
  • Anshula Das,
  • Anindya Bose

摘要

This manuscript presents the suitability of the compact, low-cost, dual frequency GNSS modules (CLD) for GNSS precise points positioning (PPP) by comparing the results with simultaneously operating costly geodetic receivers using two CLD modules and two geodetic receivers. Online PPP is done from NRCan, Canada, using the rapid, ultra-rapid, and final IGS products. The results show the similar performance of all the hardware with the clear advantage of cost, size, and power requirements in case of the CLD modules; 3 mm × 3 mm × 10 mm PPP position uncertainty with 95% confidence is achieved in latitude, longitude, and altitude respectively for an uBlox ZED F9P CLD module and similar performance for an NTLab 104v3 CLD module in GPS + GLONASS hybrid operation like the geodetic receivers. It is also observed that the GPS + GLONASS hybrid operation provides better performance than single-constellation operations, and the use of final IGS products marginally improves the solution quality. The results would be useful in implementing cost and power-efficient, precise GNSS PPP for relevant applications.