基于熵权灰色关联法的雷达认知成像目标优先级评价方法  

Research on adaptive scheduling of radar imaging resources based on entropy weight grey correlation method

作　　者：谢涛 邓洪高[2] 廖可非 XIE Tao;DENG Honggao;LIAO Kefei(The 54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050081,China;School of Information and Communication,Guilin University of Electronic Technology,Guilin 541004,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《桂林电子科技大学学报》2021年第3期178-185,共8页Journal of Guilin University of Electronic Technology

基　　金：广西创新驱动发展专项(桂科AA21077008);广西无线宽带通信与信号处理重点实验室基金(GXKL06160113)。

摘　　要：战场情况瞬息万变并逐渐复杂化,雷达需执行的任务数量不断增多,因而雷达需要对资源进行分配调度,以实现最大化任务执行效益。而在雷达资源认知调度中,对任务目标优先级的评价是进行资源调度面临的首要问题。针对在目前雷达资源认知调度中,目标优先级的评价受主观影响较大、未能考虑到任务之间客观联系的问题,提出了基于熵权灰色关联法对目标优先级进行在线评估的方法,并应用到认知ISAR的雷达成像资源自适应调度中。该方法对影响目标优先级的多个参数,运用熵权法在线评估出各参数的权重,再通过灰色关联法对各目标优先级排序,最后将优先级排序应用到认知ISAR成像的雷达资源调度中,保证了资源分配的客观性。仿真实验表明,该方法能够在满足目标图像分辨率基本要求上,提高时间资源利用率,且保证目标优先级评估的客观性。In the current radar resource scheduling,the evaluation of target priority is subjectively influenced,and the problem of objective connection between tasks is not taken into consideration.A method of online assessment of target priority based on grey relation method based on entropy weight is proposed.It is applied to adaptive scheduling of radar imaging resources in cognitive ISAR.The method uses the entropy weight method to evaluate the weights of each parameter on the multiple parameters affecting the target priority,and then prioritizes each target by gray correlation method.Finally,the priority ordering is applied to the radar resources of cognitive ISAR imaging.In the scheduling,the objectivity of resource allocation is guaranteed.Simulation experiments verify the feasibility of the algorithm.

关 键 词：熵权法 认知成像 灰色关联法 资源调度 ISAR 

分 类 号：TN957[电子电信—信号与信息处理]