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Journal of ZheJiang University (Engineering Science)  2025, Vol. 59 Issue (11): 2430-2438    DOI: 10.3785/j.issn.1008-973X.2025.11.022
    
Method for UAV air combat situation assessment under incomplete information
Yu WANG(),Shuo LI,Zhan ZHANG,Guanglei MENG
School of Automation, Shenyang Aerospace University, Shenyang 110136, China
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Abstract  

A multi-mode variable-weight spatiotemporal fusion evidential network method based on an evidence correction mechanism was proposed in order to address the issue that traditional situation assessment methods struggled to continuously provide effective results when information was incomplete due to their fixed models and reasoning mechanisms. Evidence types were classified according to the degree of temporal correlation of information, and a modular evidential network reasoning model was constructed. A multi-mode evidence correction method was proposed combined with temporal information prediction technology based on the type and incompleteness degree of evidence information. An adaptive generation method for network node weights was proposed considering the differences in the reliability of corrected evidence and based on the variable weight principle. The temporal correlation of non-mutant evidence was strengthened, and the accuracy of continuous situation assessment was improved by designing a three-step spatiotemporal fusion mechanism with a time-decreasing discount rate. The effectiveness of the proposed method was verified through UAV air combat simulation experiments under two scales with four levels of information incompleteness.



Key wordssituation assessment      incomplete information      evidence correction      weight adjustment      spatio-temporal fusion     
Received: 23 October 2024      Published: 30 October 2025
CLC:  TP 391  
Fund:  国家自然科学基金资助项目(61906125,62373261);辽宁省高校基本科研业务费资助项目(LJ232410143020,LJ212410143047).
Cite this article:

Yu WANG,Shuo LI,Zhan ZHANG,Guanglei MENG. Method for UAV air combat situation assessment under incomplete information. Journal of ZheJiang University (Engineering Science), 2025, 59(11): 2430-2438.

URL:

https://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2025.11.022     OR     https://www.zjujournals.com/eng/Y2025/V59/I11/2430


面向不完备信息的无人机空战态势评估方法

针对传统态势评估方法因模型和推理机制固定,在信息不完备时难以持续提供有效结果的问题,提出基于证据修正机制的多模式变权时空融合证据网络方法. 按照信息的时间关联程度划分证据类型,构建模块化证据网络推理模型. 基于证据信息的类型和不完备程度,结合时序性信息预测技术,提出多模式证据修正方法. 考虑修正证据可靠度差异同时基于变权原理,提出网络节点权值的自适应生成方法. 通过设计折扣率随时间递减的三步时空融合机制,强化非突变型证据的时间关联,提升连续性态势评估的准确性. 分别通过两规模下4种信息不完备程度的无人机空战仿真实验,验证方法的有效性.


关键词: 态势评估,  不完备信息,  证据修正,  权值调整,  时空融合 
Fig.1 Air combat situation assessment flow of MVWSF-EN
Fig.2 Modular model for situation assessment
证据节点变量说明识别框架等级说明
S态势等级0_低;—
HI作战意图0_低;—
C作战能力0_低;—
G几何优势0_弱;—
FCR火控雷达{0,1}0_关;1_开
NF非友方平台{0,1}0_错;1_对
IFF敌友识别{0,1}0_敌;1_友
WER武器攻击范围{0,1,2,3}0_弱;3_强
I处理危机能力{0,1,2,3}0_弱;3_强
ADA角度距离优势0_低;—
VA速度优势{0,1,2,3,4}0_弱;4_强
AA角度优势{0,1,2,3}0_弱;3_强
DA距离优势{0,1,2,3,4}0_弱;4_强
HA高度优势{0,1,2,3}0_弱;3_强
Tab.1 Description of node variables
信度节点融合规则
m9NF、IFF(IFF=1)$ \Rightarrow $(NF=0):[0.95,1];
(IFF=0)$ \Rightarrow $(NF=1):[0.4,0.6]
m10HI、FCR、NFHI=FCR&3NF+3NF
m11C、WER、IC = 3WER+I
m12ADA、AA、DAADA = AA×DA
m13G、ADA、VA、HAG = 3ADA+VA+2HA
m14S、HI、CGS = HI+C+G
Tab.2 Initial fusion rule
Fig.3 Selection process of evidence input and correction mode
输入模式适用类型修正方案
模式1全部类型原始信息本身
模式2确定型、连续型预测数据替换
模式3确定型前一时刻数据替换
模式4突变型、确定型删除当前证据节点
Tab.3 Method of evidence amendment
Fig.4 CNN-GRU network model
Fig.5 Inverse conversion process of predicted belief expectation
Fig.6 Variable-weight spatiotemporal fusion process of non-mutant network module
Fig.7 One against one track
信息
时刻
$ \mathop p\nolimits_{\text{b}} {\text{/}}(^\circ) $$ \mathop p\nolimits_{\text{r}} {\text{/}}(^\circ) $$d/{\mathrm{m}}$$ \mathop v\nolimits_{\text{b}} {{/({\mathrm{m}} \cdot {\mathrm{s}}^{-1})}} $$ \mathop v\nolimits_{\text{r}} {{/({\mathrm{m}} \cdot {\mathrm{s}}^{-1})}} $$ \mathop h\nolimits_{\text{b}} {\text{/m}} $$ \mathop h\nolimits_{\text{r}} {\text{/m}} $m
FCRIFFWERI
t196.0798.396065.07190.61190.648000.388091.27{0.8, 0, 0.2}{0.1, 0.9, 0}{0.5, 0.2, 0.1, 0, 0.2}{0, 0.2, 0.5, 0.2, 0.1}
t2100.50103.765618.49190.16191.338037.198104.47{0.5, 0, 0.5}{0.1, 0.8, 0.1}{0.1, 0.6, 0.1, 0, 0.2}{0, 0.2, 0.5, 0.1, 0.2}
t392.4097.484472.12188.58191.638112.708135.21{0.1, 0.5, 0.4}{0.1, 0.7, 0.2}{0.3, 0.5, 0.1, 0, 0.1}{0, 0.1, 0.6, 0.1, 0.2}
t483.7590.053893.08187.53191.058148.838150.74{0.1, 0.5, 0.4}{0.1, 0.7, 0.2}{0.1, 0.7, 0.1, 0, 0.1}{0, 0.1, 0.6, 0.1, 0.2}
t583.7580.413258.55186.22190.858189.448167.48{0, 0.8, 0.2}{0.3, 0.6, 0.1}{0.1, 0.6, 0.2, 0, 0.1}{0, 0.1, 0.6, 0.2, 0.1}
t698.0353.972188.50183.45183.458261.838202.54{0.1, 0.7, 0.2}{0.3, 0.6, 0.1}{0.1, 0.7, 0.2, 0, 0}{0, 0.1, 0.5, 0.2, 0.2}
t7115.0438.251906.01182.29189.028292.218221.95{0.1, 0.8, 0.1}{0.4, 0.5, 0.1}{0, 0.8, 0.1, 0, 0.1}{0, 0.2, 0.5, 0.1, 0.2}
t8123.4431.461837.03189.02188.808306.068232.44{0.8, 0, 0.2}{0.1, 0.9, 0}{0.5, 0.2, 0.1, 0, 0.2}{0, 0.2, 0.5, 0.2, 0.1}
t9131.1026.271806.53181.26188.488319.028243.45{0.5, 0, 0.5}{0.1, 0.8, 0.1}{0.1, 0.6, 0.1, 0, 0.2}{0, 0.2, 0.5, 0.1, 0.2}
t10143.2820.771809.42180.36187.138342.298267.10{0.1, 0.5, 0.4}{0.1, 0.7, 0.2}{0.3, 0.5, 0.1, 0, 0.1}{0, 0.1, 0.6, 0.1, 0.2}
Tab.4 One-on-one air combat information
Fig.8 Switching of evidence input mode
Fig.9 Comparison of results of various methods under incomplete information in one against one scenario
Fig.10 Two against one track
Fig.11 Situation assessment result of ablation experiment
方法tav/s
MVWSF-ENDE-ENTSF-ENEN
1对10.170.250.260.25
2对10.320.640.720.66
Tab.5 Average running time comparison of four methods
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