基于角色编组的卫星遥感信息组播分发技术

卫星遥感信息在战略方向侦察、重大危机与突发事件监视、非战争军事行动和部队演练、训练活动保障等方面发挥着重要作用。建立快速高效的卫星遥感信息分发机制是一个难点。点播、组播、多播的方式在联合作战中应用比较广泛。基于角色编组的访问控制模型，对参战单元编组进行组播分发，在组间采用基于所需卫星遥感信息的分配方法和组内采用基于角色接收方的分配方法，提高了组播方式下卫星遥感信息分发效率，有效减轻了自适应分发和主动分发压力。

Multicast Distribution Technology of Satellite Remote Sensing Information Based on Role Grouping

Satellite remote sensing information plays an important role in the detection of strategic direction, major crisis and emergency monitoring, non-war military operations and troop exercises activities security. It is difficult to establish a fast and efficient satellite remote sensing information distribution mechanism. On demand, group cast, multicast are widely used in joint operations. Based on the role grouping access control model, war unit grouping is distributed in groups. The allocation method based on the required satellite remote sensing information is adopted between the groups, and the allocation of roles recipient is used in groups. So satellite remote sensing information distribution efficiency is improved in multicast mode, and the pressure of the adaptive distribution and active dis- tribution are effectively reduced.