| 摘要: |
| 抗干扰性能是决定雷达作战效能发挥的重要因素，传统的雷达抗干扰性能评估仿真体系不健全，技术方法单一，智能化程度低，可视性差。基于现代雷达智能抗干扰工作体系，设计实现了基于干扰信号感知的雷达智能抗干扰评估仿真系统。系统分为干扰信号识别、主动/被动干扰拟制、抗干扰性能评估三大模块，应用支持向量机（SVM）提取干扰信号时频特征进行智能识别，对不同干扰采用旁瓣对消、旁瓣匿影、发射波束优化等抗干扰策略，给出抗干扰前后雷达抗干扰性能的提升情况，做到了雷达智能抗干扰的全过程评估。系统可为雷达抗干扰技术的分析验证提供了良好的验证平台，具有一定的应用前景。 |
| 关键词: 雷达抗干扰 性能评估 仿真系统 干扰识别 |
| DOI：DOI:10.3969/j.issn.1672-2337.2021.03.004 |
| 分类号:TN974 |
| 基金项目:2017武器装备军内科研项目 |
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| A Simulation System for Radar Intelligent Anti-Jamming Evaluation |
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PENG Zhigang，LI Baopeng，LI Dalong，GAO Weiliang
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Qingdao Branch of Naval Aviation University, Qingdao 266041, China
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| Abstract: |
| Anti-jamming performance is an important factor to determine the operational effectiveness of radar. The traditional radar anti-jamming performance evaluation simulation system is not perfect due to single technical method, low degree of intelligence, and poor visibility. Based on the modern radar intelligent anti-jamming working system, a radar intelligent anti-jamming evaluation simulation system based on jamming signal perception is designed and implemented. The system is divided into three modules: jamming signal identification, active/passive jamming preparation and anti-jamming performance evaluation. SVM is used to extract the time-frequency characteristics of jamming signals for intelligent identification. Anti-jamming strategies such as sidelobe cancellation, sidelobe blanking and transmit beam optimization are adopted for different jammings. The improvement of radar anti-jamming performance is given, and the whole process assessment of radar intelligent anti-jamming is achieved. The system can provide a good platform for the analysis and verification of radar anti-jamming technology, and has a certain application prospect. |
| Key words: radar anti-jamming performance evaluation simulation system jamming identification |
