Space-Integrated-Ground Information Networks ›› 2023, Vol. 4 ›› Issue (1): 23-30.doi: 10.11959/j.issn.2096-8930.2023003

Special Issue: 大规模星座组网及测控关键技术

• Special Issue: Key Technologies for Networking and TT&C in Large Scale Constellations • Previous Articles     Next Articles

Robust Scheduling Method of TT&C Resource in Satellite Network

Xiang JI, Runzi LIU, Chenhong YAO, Jianhao CHEN, Tao MU   

  1. School of Information and Control Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
  • Revised:2023-01-29 Online:2023-03-20 Published:2023-03-01
  • Supported by:
    The National Natural Science Foundation of China(61701365);Key Research and Development Program in Shaanxi Province of China(2021GY-066);Natural Science Basic Research Program of Shaanxi Province(2023-JC-YB-566);Young Talent fund of University Association for Science and Technology in Shaanxi, China(20200112);Postdoctoral Foundation in Shaanxi Province of China(2018BSHEDZZ47)

Abstract:

The continuous growth of satellite network scale brings great challenges to the eff ective scheduling of TT&C resources.Aff ected by weather and other factors, the performance of the satellite-ground link is of high uncertainty.In order to took into both resource utilization and task reliability, a robust scheduling method of TT&C resources was proposed.This method could arranged the start time and duration of the transmission window for TT&C tasks by the predicted the channel state distribution of satelliteground link and the task distribution in the planning period, and optimized the resource allocation scheme by backward iteration to maximized the expected profit of the tasks.The experimental results showed that compared with the traditional non-robust scheduling method, the scheduling method proposed could obtain more task profi t under diff erent channel distributions and achieve the improvement of both resource utilization and task reliability.

Key words: aerospace TT&C, resource scheduling, robust scheduling, satellite network

CLC Number: 

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