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Two-layer Lagrange-based relay network topology and trajectory design for solar system explorations
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Two-layer Lagrange-based relay network topology and trajectory design for solar system explorations
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Journal Article
Two-layer Lagrange-based relay network topology and trajectory design for solar system explorations
2024
Overview
Exploration targeting outer planets and even the edge of the solar system is an emerging direction for the deep-space exploration in the next decades. To address this challenge, a novel two-layer Lagrange-based relay network topology is proposed in this study. Specifically, we utilize the Sun-Mars and Sun-Saturn Lagrange points (LPs) L4 and L5 to build a two-layer backbone relay network, which ensures continuous and high-efficiency communication capability for the exploration of the solar system. Furthermore, we utilize the planetary gravity assist and design the transfer trajectory of backbone relays with the help of planetary celestial body motion equations and Kepler’s laws. Moreover, we conduct link budget analysis for multihop relay transmission under Gamma-Gamma distribution, shadowed Rician fading, and additive white Gaussian noise channels in several typical exploration scenarios and validate that the LP relays can effectively support future deep-space exploration missions.
Publisher
Science China Press,Springer Nature B.V
