Performance-Driven Design of Carrier Phase Differential Navigation Frameworks With Megaconstellation LEO Satellites

Simulations of Dedicated LEO-PNT Systems for Precise Point Positioning: Methodology, Parameter Analysis, and Accuracy Evaluation

“…In this regard, most of the current simulations have focused on fragmented topics of the fullchain LEO-PNT solution [9]. They have focused on how to define new orbit models embedded to the broadcast messages [13], [14], [15], orbit determination [16], [17], [18], signal structure designs [19], [20], [21], atmospheric models [22], [23], [24], constellation optimization strategies to improve the GNSS convergence time [6], [25], satellite clocks [26], [27], user performance estimation [28], [29], [30], [31], [32], [33], [34], and integration with distinct sensors [35]. To expand the simulations, there is still a gap in the process of implementing an end-to-end LEO-PNT system, binding all segments in a unified model.…”