Effect of the LEO constellation’s orbital parameters on the number and distribution of LRO events

Weiwei Wang; Zhangjian Lu; Ye Tian; Lang Bian; GuoYong Wang; Lixin Zhang

doi:10.1117/12.2685580

28 July 2023 Effect of the LEO constellation’s orbital parameters on the number and distribution of LRO events

Weiwei Wang, Zhangjian Lu, Ye Tian, Lang Bian, GuoYong Wang, Lixin Zhang

Proceedings Volume 12716, Third International Conference on Digital Signal and Computer Communications (DSCC 2023); 127160X (2023) https://doi.org/10.1117/12.2685580
Event: Third International Conference on Digital Signal and Computer Communications (DSCC 2023), 2023, Xi'an, China

Abstract

The radio occultation (RO) events can obtain the global atmospheric delay information, effectively make up for the deficiency of ground-based observation, and then realize the real-time dynamic positioning based on the precise point positioning (PPP) model. With the development of low-earth orbit (LEO) constellations, a large number of LEO constellation plans with communication or navigation functions have been proposed. If these LEO constellations can be applied to detect occultation events and build space weather models, the full monitoring space-based without large-scale station building on the ground can realize. In this paper, the LRO events between satellites in the LEO constellation are simulated, and these satellites can be used as both transmitting satellites and receiving satellites. The effect of the LEO constellation’s orbital altitude and inclination on LRO events is also analyzed through simulation. The results show that the LEO constellation’s orbital altitude has little influence on the number, and the occultation events spread from the equatorial region to the polar region with the increase of the LEO orbit inclination from 0° to 75°, the number of LRO events increased. The simulation results can provide some references for the occultation exploration plan of the LEO constellation.

Citation Download Citation

Weiwei Wang, Zhangjian Lu, Ye Tian, Lang Bian, GuoYong Wang, and Lixin Zhang "Effect of the LEO constellation’s orbital parameters on the number and distribution of LRO events", Proc. SPIE 12716, Third International Conference on Digital Signal and Computer Communications (DSCC 2023), 127160X (28 July 2023); https://doi.org/10.1117/12.2685580

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KEYWORDS

Satellites

Atmospheric modeling

Mathematical modeling

Atmospheric sensing

Computer simulations

Earth's atmosphere

Navigation systems

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