Journal of Astronautics ›› 2014, Vol. 35 ›› Issue (10): 1105-1113.doi: 10.3873/j.issn.1000-1328.2014.10.001

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Satellite Utility Improvement Technique Based on Dynamic On board Command Scheduling

TIAN Zhi xin, TANG Hai tao, WANG Zhong guo, WANG Da bao, CAO Jing   

  1. Beijing Institute of Spacecraft System Engineering, Beijing 100094,China
  • Received:2013-11-21 Revised:2014-04-21 Online:2014-10-15 Published:2014-10-25


The utilization of pre-set command sequences based on static constraints results in utility degradation for traditional Earth-observation-satellite mission management scheme. To solve this problem, a dynamic-constraint-orientated adaptive mission management scheme based on the directed graph model is proposed in this paper. Dynamic constraint parameters are calculated by using the ground simulation combined with real-time telemetry data from on-board circuit. Based on these constraints and user-orientated mission control interfaces between the space segment and the ground segment, the command sequences are dynamically generated by the on-board computer. The simulation result for an Earth-observation-satellite shows that compared with the conventional scheme, user-orientated control interface complexity can be reduced by 88.5%, effective command uplink rate can be improved by 699%, effective payload data transmission rate can be improved by 10%, global data acquisition capability can be improved by 11%, and real-time data acquisition capability can be improved by 100% in China. The proposed dynamic constraint-orientated adaptive mission management scheme has great potential in Earth-observation-satellite on-orbit operation.

Key words: Directed graph model, User-orientated mission control, On-board command scheduling, Dynamic constraint, Utility improvement

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