防空预警雷达高原环境适应性评估的自学习模糊灰度方法

doi:10.3969/j.issn.1000-1093.2022.01.011

摘要/Abstract

摘要： 高原地区恶劣的自然环境对防空预警雷达各部件正常工作带来了严峻挑战。为提高雷达装备在高原地区的使用效能、降低后期维护成本，需要在装备研制阶段进行合理化的环境适应性评估。针对上述需求，提出一种基于自学习模糊灰度理论的防空预警雷达高原环境适应性评估方法。通过分析影响防空预警雷达高原环境适应性的关键指标因素，建立基于贝叶斯估计的指标权重自学习模型，实现组合赋权法中主、客观权重偏好系数的自适应调节。针对评估指标因素与评判状态之间存在的模糊关系，结合各环境指标影响下的装备失效率，构建隶属度函数，实现不确定条件下的评估指标赋值。在上述工作基础上，考虑信息灰度影响，建立面向防空预警雷达高原环境适应性评估的自学习模糊灰度模型。以某型号防空预警雷达各系统、部件为例，开展有、无学习过程的高原环境适应性评估仿真实验。结果表明，该方法在充分考虑专家主观经验的同时，遵循客观事实呈现的数据规律，使评估结果更加具有合理性。

关键词: 防空预警雷达, 高原环境适应性评估, 自学习模型, 模糊灰度, 隶属度函数

Abstract: The harsh natural environment in plateau area brings severe challenges to the normal operation of air defense early-warning radar. In order to improve the efficiency of radar in plateau area and reduce the maintenance cost, the reasonable environmental adaptability assessment should be taken for the air defense early-warning radar in the development stage. In view of the above requirements, a self-learning fuzzy grey method is proposed. A self-learning model based on Bayesian estimation about index weight is established to realize the adaptive adjustment of subjective and objective weight preference coefficients in the combination weighting method by analying the key factors affecting the plateau environmental adaptability of air defense early-warning radar. For the fuzzy relationship among evaluation index factors and evaluation states, the membership function is constructed from the radar failure rates under the influence of various environmental indexes to realize the assignment of valuation index under uncertainty conditions. On the basis of the above work, a self-learning fuzzy grey model for plateau environmental adaptability assessment of air defense early-warning radar is built, in which the influence of information grey value is considered. A simulation experiment of evaluating the plateau environmental adaptability with and without learning process was conducted on various systems and components of an air defense early-warning radar. The results show that the proposed method not only fully considers the subjective experience of experts, but also follows the data law presented by objective facts, which makes the evaluation results more reasonable.

Key words: airdefenseearly-warningradar, plateauenvironmentadaptabilityassessment, self-learningmodel, fuzzygreydegree, membershipfunction

中图分类号:

TN959.1⁺1

孟光磊，李树发，刘彬斌，周铭哲，孙东来，吴昊. 防空预警雷达高原环境适应性评估的自学习模糊灰度方法[J]. 兵工学报, 2022, 43(1): 98-110.

MENG Guanglei, LI Shufa, LIU Binbin, ZHOU Mingzhe, SUN Donglai, WU Hao. Self-learning Fuzzy Grey Method for Plateau Environmental Adaptability Assessment of Air Defense Early-warning Radar[J]. Acta Armamentarii, 2022, 43(1): 98-110.

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