Low-Cost Satellite-Based Correction Service for Precise Point Positioning in Latin America

Authors

  • Ramon Lopez La Valle UIDET SENyT, Departamento de Electrotecnia, Facultad de Ingeniería, Universidad Nacional de La Plata, La Plata, Argentina https://orcid.org/0000-0002-2976-6937
  • Ernesto Lopez UIDET SENyT, Departamento de Electrotecnia, Facultad de Ingeniería, Universidad Nacional de La Plata, La Plata, Argentina https://orcid.org/0000-0002-2871-5513
  • Javier Garcia UIDET SENyT, Departamento de Electrotecnia, Facultad de Ingeniería, Universidad Nacional de La Plata, La Plata, Argentina https://orcid.org/0000-0001-8017-4884

Keywords:

Satellite navigation systems, precise positioning, correction service, satellite broadcasting

Abstract

Global Navigation Satellite Systems (GNSS) applications have been continuously expanding during the last years. When centimeter-level accuracy is required, the use of a single conventional GNSS receiver is not suitable because of the presence of different error sources that degrade the quality of its measurements. Precise Point Positioning (PPP) methods depend on applying corrections to significantly improve the accuracy of a single receiver allowing to obtain centimeter-level performance. This paper focuses on the design of a satellite-based service that broadcast the open access corrections for PPP generated by the International GNSS Service (IGS) being appropriate for real-time applications. The proposed system is based on the Argentinian geostationary satellite ARSAT 2 capable of providing service to Latin America. The system requirements and specifications are defined in order to deliver a good quality of service reducing the complexity and the cost of the users’ receivers. Thoroughly analyzes and calculations carried out demonstrate that, adopting practical design criteria, a low-cost implementation is possible. We present the main characteristics of the uplink ground station and downlink user receivers. Moreover, different user receiver architectures as well as the design of a simple antenna are proposed. Simulation results using real data show that our solution is able to provide up to centimeter-level accuracy achieving a performance similar to other costly commercial correction services.

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Author Biographies

Ramon Lopez La Valle, UIDET SENyT, Departamento de Electrotecnia, Facultad de Ingeniería, Universidad Nacional de La Plata, La Plata, Argentina

He received the Electronics Engineering degree from the National University of La Plata (UNLP), Argentina, in 2003. He is currently a Professor in the UNLP, involved in research and development of Global Navigation Satellite Systems (GNSS) receivers and processing techniques for aerospace and high-precision applications. His interests are in Statistical Signal Processing, Digital Communications, and Embedded Systems with applications to GNSS.

Ernesto Lopez, UIDET SENyT, Departamento de Electrotecnia, Facultad de Ingeniería, Universidad Nacional de La Plata, La Plata, Argentina

He received the Electronics Engineering and the M.Sc. in Engineering degrees from the National University of La Plata (UNLP), Argentina, in 2008 and 2014, respectively. He is currently an Assistant Professor with the UNLP,
involved in research and development of Global Navigation Satellite Systems (GNSS) receivers for aerospace applications. His research interests include electromagnetic compatibility, antennas, and radio frequency and microwave circuits with applications to GNSS and wireless communications.

Javier Garcia, UIDET SENyT, Departamento de Electrotecnia, Facultad de Ingeniería, Universidad Nacional de La Plata, La Plata, Argentina

He received the Electronics Engineering degree from the National University of La Plata (UNLP), Argentina, in 2015. He is currently pursuing the Ph.D. degree in Electronics Engineering at UNLP. His research interest includes statistical signal processing applied to the development of high precision GNSS-based positioning techniques, and precise orbit and baseline determination for satellite navigation.

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Published

2023-03-02

How to Cite

Lopez La Valle, R., Lopez, E., & Garcia, J. (2023). Low-Cost Satellite-Based Correction Service for Precise Point Positioning in Latin America. IEEE Latin America Transactions, 21(3), 519–528. Retrieved from https://latamt.ieeer9.org/index.php/transactions/article/view/7296

Issue

Vol. 21 No. 3 (2023): Ordinary Issue

Section

Electronics

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