电子学报
電子學報
전자학보
ACTA ELECTRONICA SINICA
2013年
10期
1994-1999
,共6页
王博%李骏%吴洪%程洪玮
王博%李駿%吳洪%程洪瑋
왕박%리준%오홍%정홍위
低轨星座%传感器网络%调度算法%预指派%跟踪
低軌星座%傳感器網絡%調度算法%預指派%跟蹤
저궤성좌%전감기망락%조도산법%예지파%근종
low earth orbit constellation%sensor networks%scheduling algorithms%pre-assignment%tracking
针对天基光学传感器网络实时调度算法的局限,深入分析目标运动特征,提出一种传感器预指派模型。在多目标传感器资源需求紧耦合和松耦合条件下,引入实时修正机制,分别提出基于修正粒子群优化和分段指派的传感器动态预指派算法。资源需求紧耦合和松耦合场景下仿真实验表明,动态预指派算法虽然需要较长时间的预先指派过程,但其实时修正的运算效率明显高于实时调度算法,为上层系统设计留下更多富余时间。
針對天基光學傳感器網絡實時調度算法的跼限,深入分析目標運動特徵,提齣一種傳感器預指派模型。在多目標傳感器資源需求緊耦閤和鬆耦閤條件下,引入實時脩正機製,分彆提齣基于脩正粒子群優化和分段指派的傳感器動態預指派算法。資源需求緊耦閤和鬆耦閤場景下倣真實驗錶明,動態預指派算法雖然需要較長時間的預先指派過程,但其實時脩正的運算效率明顯高于實時調度算法,為上層繫統設計留下更多富餘時間。
침대천기광학전감기망락실시조도산법적국한,심입분석목표운동특정,제출일충전감기예지파모형。재다목표전감기자원수구긴우합화송우합조건하,인입실시수정궤제,분별제출기우수정입자군우화화분단지파적전감기동태예지파산법。자원수구긴우합화송우합장경하방진실험표명,동태예지파산법수연수요교장시간적예선지파과정,단기실시수정적운산효솔명현고우실시조도산법,위상층계통설계류하경다부여시간。
To deal with the limitation of real-time scheduling algorithm of space based optical sensor network ,the object characteristics was deeply analyzed ,and a sensor pre-assignment model was proposed .Furthermore ,the real-time modification was introduced ,and the dynamic sensor pre-assignment algorithms based on modified particle swarm optimization and segmented pre-as-signment were proposed ,under the condition of different demand couple ,i .e .tight couple and loose couple .Simulations conducted under the condition of tight couple and loose couple show that ,the dynamic sensor pre-assignment algorithm needs long-time pre-as-signment process ,but the computation efficiency of real-time modification exceeds that of real-time scheduling algorithm ,which can leave more margin time for the upper system .