面向巨型星座系统的多地面站协同测控技术

doi:10.11959/j.issn.2096-8930.2023001

Abstract

Abstract:

Measurement and control technology is the key technology to ensure the effi cient operation, maintenance and management of the constellation system.In recent years, with the continuous expansion of the constellation scale, mega-constellation system has gradually formed, which makes the demand for constellation measurement and control show an explosive growth, which puts forward new requirements for the completion of the constellation system measurement and control tasks.Firstly, the constraints of the megaconstellation system measurement and control tasks and the equipment constraints of the ground measurement and control station were analyzed, and the problem modeling was given; Secondly, an interaction method of the ground station agent based on the learning planning segment was proposed, by introduced the constraint penalty operator and the multi-ground station joint the penalty operator was designed to optimized the objective function.Finally, a multi-ground station Agent reinforcement learning algorithm was proposed to solved the multi-ground station cooperative task assignment strategy.Simulation experiments showed that when the task scale was large, the method had a gain of 12%~20% compared with the traditional algorithm in the diff erent scenarios mentioned.

Key words: mega constellation, measurement and control task planning, multi-ground station coordination, multi-Agent reinforcement learning

CLC Number:

TP393

Yang LIU, Di ZHOU, Min SHENG, Jiandong LI, Shiguang HAO, Xiaotian ZHENG. Multi-Ground Station Collaborative Measurement and Control Technology for Giant Constellation System[J]. Space-Integrated-Ground Information Networks, 2023, 4(1): 2-11.

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References 22

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参数	值
学习率α	0.1
折扣因子γ	0.9
ε_lose	0.002 5
ε_win	0.01
迭代总步数	20万步

地面站个数（128个）	场景1	场景2	场景3	场景4
卫星数/颗	189	378	756	1134
卫星数（1 134颗）	场景5	场景6	场景7	场景8
地面站个数/个	47	83	128	162

星座名称	轨道数/个	每轨星数/颗	总星数/颗	轨道倾角/°	轨道高度/km
LEO-1	18	21	378	85	1 345
LEO-2	36	21	756	89	1 100

Multi-Ground Station Collaborative Measurement and Control Technology for Giant Constellation System

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