基于主客观相结合的空中目标威胁评估  

Air Target Threat Assessment Based on Subjective and Objective Combination

作　　者：毋嘉纬 周林[1] 金勇[1] 李军伟[1] 刘桓宇 WU Jiawei;ZHOU Lin;JIN Yong;LI Junwei;LIU Huanyu(School of Artificial Intelligence,Henan University,Zhengzhou 450046,China)

机构地区：[1]河南大学人工智能学院,郑州450046

出　　处：《指挥信息系统与技术》2022年第1期22-29,共8页Command Information System and Technology

基　　金：国家自然科学基金(61976080,61771006,U1804149);河南省高等学校重点科研(21A413002,19A413006,20B510001);河南省科技发展计划(212102310298,192102210254)资助项目。

摘　　要：对空中目标进行威胁评估时,为了解决目标区分度不高等问题,提出了一种基于主客观相结合的空中目标威胁评估方法,即模糊层次分析法-改进D-S证据理论(F-IDS)算法。首先,根据空中目标的距离和速度等信息,利用三角形隶属函数生成目标的基本概率指派(BPA),并利用信息量、Hellinger距离及相似度共同确定BPA权重;然后,基于D-S证据理论和Murphy规则求出目标的加权BPA,进而求出目标客观威胁度;接着,利用模糊层次分析法确定目标的主观威胁度,并辅助客观威胁度,进而实现目标威胁评估的主客观综合评价。仿真结果表明,F-IDS算法增加了威胁评估结果的多元性,提高了威胁度之间的区分度。In order to solve the problem of low target discrimination,a method of air target thread assessment based on subjective and objective combination is proposed,that is the fuzzy analytic hierarchy process-improve Dempster-Shafer evidence theory(F-IDS)algorithm.Firstly,according to the distance and speed information of the air target,the basic probability assignment(BPA)of the target is generated by triangular membership function,and the weight of BPA is determined by information amount,Hellinger distance and similarity.Secondly,the weighted BPA of the target is calculated based on D-S evidence theory and Murphy rule,and then the objective threat degree of the target is calculated.Then,the fuzzy analytic hierarchy process is used to determine the subjective threat degree of the target,and it is used to assist the objective threat degree,and then realize the subjective and objective comprehensive evaluation of the target threat assessment.Simulation results show that the FIDS algorithm increases the diversity of threat assessment results and improves the degree of discrimination between threat degrees.

关 键 词：目标威胁评估 模糊层次分析法 三角模糊数 D-S证据理论 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]