Task merging mechanism of space-based optical surveillance for space debris

To improve the efficiency of the space-based surveillance system, two task merging mechanisms, equal priority task merging method and different priority task merging for single satellite, were presented according to the observation requests, satellite surveillance ability and optical visibility constraints. As to the equal priority task merging method, all space debris were considered as equal priority and the goal is to increase the number of merged debris. Different from the equal priority task merging method, the different priority task merging method should execute the total profit of merged debris and the goal is to improve the benefit of merged debris. Simulation results show that the profit of surveillance could be improved about 8 times by task merging and the relationship between merging profit and the observable space debris number of SBV sensor is near linear. © 2015 Beijing Institute of Technology.