基于组合赋权和正态云模型的电子对抗系统健康状态评估

doi:10.12305/j.issn.1001-506X.2024.12.22

Abstract

Abstract:

At present, the health state of airborne electronic countermeasure system is unknown, and its operational use and support decision lack reliable support. Therefore, a quantitative evaluation method for airborne electronic countermeasure system health state is proposed using combination weighting method and normal cloud model. Firstly, according to the main capabilities and its performance indicators of airborne electronic countermeasure system, the health state evaluation index system is established. Then, the subjective and objective weights of each index are synthesized by the combination weighting method. Next, the normalized data is input into the corresponding normal cloud model to map the membership degree of each index to each health status level, and the health state assessment of the system is carried out level by level. Finally, the correctness and advantages of the proposed method are verified by an example, and both randomness and fuzziness are reflected in the evaluation results.

Key words: electronic countermeasure system, health state assessment, normal cloud model, combination weighting

CLC Number:

TJ07

Jian'gang JIN, Zhongyi CAI, Zegui HUANG, Hao DENG, Liang YOU. Health state assessment of electronic countermeasure system based on combination weighting and normal cloud model[J]. Systems Engineering and Electronics, 2024, 46(12): 4140-4148.

Figures/Tables 7

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Table 1

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References 25

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特征量	L₁	L₂	L₃	L₄
Ex	0	(a+b)/2	(b+c)/2	min{7c/6, 1}
En	(a+b)/6	(a+b)/6	(c-a)/6	(4c-3b)/18
He	0.01	0.01	0.01	0.01

指标名称	指标值	劣化度
灵敏度/dBmW	-76.5	0.571
感知范围/(°)	-173.669~174.792	0.385
感知精度	3.2	0.600
识别准确率	0.767 2	0.552
告警反应时间/s	22.4	0.569
干扰功率/kW	17.435	0.283
干扰范围(俯仰)/(°)	-20.752~17.87	0.053
干扰范围(水平)/(°)	-175.382~174.494	0.338
干扰启动时间/s	65.94	0.396
平均故障间隔时间/h	2.43	0.233
平均严重故障间隔时间/h	4.21	0.290
历史任务可靠度	0.860 7	0.241
检测时间/s	318.3	0.305
准备时间/s	14.6	0.325

一级序号	指标权重	二级序号	指标权重
w₁	0.354	w₁₁	0.154
		w₁₂	0.267
		w₁₃	0.088
		w₁₄	0.237
		w₁₅	0.255
w₂	0.330	w₂₁	0.232
		w₂₂	0.178
		w₂₃	0.343
		w₂₄	0.247
w₃	0.193	w₃₁	0.198
		w₃₂	0.430
		w₃₃	0.372
w₄	0.123	w₄₁	0.432
w₄	0.123	w₄₂	0.568

健康状态向量	健康状态等级	本文方法	文献[9]	文献[14]	文献[18]
H₁	健康	0	0	0	0
	退化	0.008	0.004	0.034	0.027
	降级	0.337	0.218	0.595	0.547
	失效	0.655	0.779	0.371	0.426
H₂	健康	0.158	0.131	0.095	0.089
	退化	0.240	0.368	0.299	0.281
	降级	0.603	0.501	0.606	0.629
	失效	0	0	0	0
H₃	健康	0.003	0.003	0	0
	退化	0.791	0.774	0.705	0.686
	降级	0.207	0.224	0.295	0.314
	失效	0	0	0	0
H₄	健康	0	0	0	0
	退化	0.334	0.354	0.403	0.418
	降级	0.666	0.645	0.597	0.582
	失效	0	0	0	0
H	健康	0.053	0.037	0.031	0.031
	退化	0.275	0.290	0.245	0.245
	降级	0.440	0.352	0.557	0.546
	失效	0.232	0.321	0.166	0.178

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Health state assessment of electronic countermeasure system based on combination weighting and normal cloud model

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