基于改进D-S证据理论的相控阵雷达作战效能评估

doi:10.12305/j.issn.1001-506X.2024.04.21

Abstract

Abstract:

Aiming at the influence of uncertain factors such as battlefield environment in phased array radar operational effectiveness evaluation, the improved Dempster-Shafer (D-S) evidence theory is adopted to optimize the operational effectiveness evaluation method. Firstly, the evaluation index system of operational effectiveness of phased array radar is established, and the evaluation index is defined and the assignment weight is given. Secondly, Kulsinski difference and fuzzy entropy method are introduced to improve the traditional D-S evidence theory and reduce the influence of the uncertainty of the fusion weight in the indexes fusion process. Finally, by improving the D-S evidence theory to fuse the evaluation indexes data, the operational effectiveness evaluation model of phased array radar with high accuracy is established. Through the verification and analysis of numerical examples, the proposed method can effectively reduce the influence of uncertainty in the fusion process, which achieves the objective of phased array radar operational effectiveness evaluation, and improve the accuracy of operational effectiveness evaluation.

Key words: phased array radar, Dempster-Shafer (D-S) evidence theory, operational effectiveness evaluation, Kulsinski difference, fuzzy entropy

CLC Number:

TP18

Lisha ZHENG, Dongliang YIN, Xuan WANG. Operational effectiveness evaluation of phased array radar based on improved D-S evidence theory[J]. Systems Engineering and Electronics, 2024, 46(4): 1330-1336.

Figures/Tables 6

Fig.1

Table 1

Table 2

Table 3

Fig.2

Fig.3

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指标	权重值	评语集
指标	权重值	θ₁	θ₂	θ₃	θ₄	θ₅
U₁₁	0.309	0.15	0.31	0.42	0.12	0.00
U₁₂	0.433	0.18	0.63	0.15	0.04	0.00
U₁₃	0.258	0.13	0.44	0.27	0.16	0.00
U₂₁	0.094	0.15	0.35	0.29	0.11	0.10
U₂₂	0.212	0.07	0.46	0.41	0.06	0.00
U₂₃	0.255	0.12	0.32	0.38	0.18	0.00
U₂₄	0.306	0.05	0.23	0.33	0.34	0.05
U₂₅	0.133	0.0	0.24	0.22	0.54	0.00
U₃₁	0.373	0.15	0.36	0.28	0.21	0.00
U₃₂	0.123	0.12	0.22	0.28	0.29	0.09
U₃₃	0.148	0.00	0.11	0.34	0.48	0.07
U₃₄	0.207	0.07	0.36	0.31	0.22	0.04
U₃₅	0.149	0.08	0.37	0.33	0.16	0.06
U₄₁	0.211	0.04	0.27	0.51	0.18	0.00
U₄₂	0.427	0.16	0.39	0.10	0.35	0.00
U₄₃	0.362	0.04	0.67	0.14	0.13	0.02
U₅₁	0.534	0.30	0.26	0.21	0.15	0.08
U₅₂	0.466	0.19	0.47	0.18	0.12	0.04

对象	评语集
对象	优秀	良好	中等	一般	差
预警探测能力U₁	0.157 83	0.482 10	0.264 39	0.095 68	0
情报处理能力U₂	0.074 84	0.314 32	0.341 32	0.244 82	0.024 70
指挥控制能力U₃	0.097 12	0.307 27	0.302 54	0.254 42	0.038 65
战场生存能力U₄	0.091 24	0.466 04	0.200 99	0.234 49	0.007 24
系统可靠性U₅	0.248 74	0.357 86	0.196 02	0.136 02	0.061 36

最终融合结果	方法1	方法2	方法3	方法4
m(θ₁)	0.002 9	0.003 9	0.004 7	0.004 1
m(θ₂)	0.857 3	0.856 5	0.866 9	0.874 1
m(θ₃)	0.118 8	0.114 7	0.105 9	0.100 8
m(θ₄)	0.021 0	0.024 9	0.022 5	0.021 0
m(θ₅)	0	0	0	0

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Operational effectiveness evaluation of phased array radar based on improved D-S evidence theory

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