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| 1 | Evaluation of global navigation satellite system spoofing efficacy显示文摘The spoofing capability of Global Navigation Satellite System(GNSS)represents an important confrontational capability for navigation security,and the success of planned missions may depend on the effective evaluation of spoofing capability.However,current evaluation systems face challenges arising from the irrationality of previous weighting methods,inapplicability of the conventional multi-attribute decision-making method and uncertainty existing in evaluation.To solve these difficulties,considering the validity of the obtained results,an evaluation method based on the game aggregated weight model and a joint approach involving the grey relational analysis and technique for order preference by similarity to an ideal solution(GRA-TOPSIS)are firstly proposed to determine the optimal scheme.Static and dynamic evaluation results under different schemes are then obtained via a fuzzy comprehensive assessment and an improved dynamic game method,to prioritize the deceptive efficacy of the equipment accurately and make pointed improvement for its core performance.The use of judging indicators,including Spearman rank correlation coefficient and so on,combined with obtained evaluation results,demonstrates the superiority of the proposed method and the optimal scheme by the horizontal comparison of different methods and vertical comparison of evaluation results.Finally,the results of field measurements and simulation tests show that the proposed method can better overcome the difficulties of existing methods and realize the effective evaluation. | WANG Yue SUN Fuping HAO Jinming ZHANG Lundong WANG Xian | 2022 | Journal of Systems Engineering and Electronics2022，33，6： | 0 |
| 2 | 多属性相似度一致性投影决策法显示文摘针对多属性决策与评价问题中投影法存在平面空间一系列评价失效情况,提出了一种相似度一致性的投影决策法。首先,给出了理想偏移向量的定义,其中包含了理想决策的偏移程度和决策者的偏好;其次,根据理想偏移向量,构造了一种新的综合评价函数;然后,按照投影决策法的基本步骤,得到各方案的综合评价值。有效性分析表明,新提的方法对模相似度、距离相似度、余弦相似度和方向相似度都有综合考量,从而能避免单一相似度的不全面和综合评价函数的失效。最后,通过案例分析验证了方法合理有效。 | 郑诺希 李武 周小强 刘钢 | 2022 | 系统工程与电子技术2022，44，9： | 0 |
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