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In the last decade, thousands of satellites have been deployed in low Earth orbit (LEO), mainly targeting communication and broadband applications. However, the interest in LEO systems for Positioning, Navigation, and Timing (PNT) users has grown and several LEO-PNT constellations are planned to be launched in the following years. In this work, we investigate ambiguity-resolved performance with end-to-end simulations for the Future Navigation’s CENTISPACE constellation. We evaluate the convergence time performance of different configurations, where the role of integer ambiguity resolution is emphasized and anticipated to be still relevant for enhancing convergence time in kinematic user precise positioning.

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Ambiguity-Resolved Kinematic Performance in Low Earth Orbit (LEO) Systems for Positioning, Navigation, and Timing (PNT)

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  • 发表日期：

    2025年

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  • Lotfi Massarweh,
  • Sandra Verhagen

摘要

In the last decade, thousands of satellites have been deployed in low Earth orbit (LEO), mainly targeting communication and broadband applications. However, the interest in LEO systems for Positioning, Navigation, and Timing (PNT) users has grown and several LEO-PNT constellations are planned to be launched in the following years. In this work, we investigate ambiguity-resolved performance with end-to-end simulations for the Future Navigation’s CENTISPACE constellation. We evaluate the convergence time performance of different configurations, where the role of integer ambiguity resolution is emphasized and anticipated to be still relevant for enhancing convergence time in kinematic user precise positioning.