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Volume 40 Issue 5
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Journal of Beijing University of Aeronautics and Astronautics  > 2014  >  40(5): 644-650.
Tang Zhongxing, Han Chao. Agile satellite attitude maneuver strategy study based on directed acyclic graph[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(5): 644-650. doi: 10.13700/j.bh.1001-5965.2013.0347(in Chinese)
Citation: Tang Zhongxing, Han Chao. Agile satellite attitude maneuver strategy study based on directed acyclic graph[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(5): 644-650. doi: 10.13700/j.bh.1001-5965.2013.0347(in Chinese)
shu

Agile satellite attitude maneuver strategy study based on directed acyclic graph

doi: 10.13700/j.bh.1001-5965.2013.0347

  • School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 18 Jun 2013
  • Publish Date: 20 May 2014
    Abstract
  • Compared to the traditional Earth observation satellites, the agile satellites have more degrees of freedom for attitude maneuver and complex observation modes. An agile satellite attitude strategy based on time-ordered directed acyclic graph was proposed for the one-orbit strips-jointed and multi-spots observation modes for the agile satellites in its one pass time window. Firstly, the area target and the spot targets were divided into a certain number of strips. And then, the observation time windows of these strips were discretized into a series of time points with their strips information. With these time points, a time-ordered directed acyclic graph was constructed. After that, the attitude maneuver problem for the agile Earth observation satellites was described as the optimal path problem based on the time-ordered directed acyclic graph theory. The simulation examples prove the availability of the attitude maneuver strategy for the agile satellites in one-orbit strips-jointed and multi-spots observation modes based on time-ordered directed acyclic graph. And that the strategy, maximizing observation coverage and minimizing maneuver time cost would be got at the same time, was obtained by this method.

     

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