| 引用本文: | 夏韶俊， 胡泽宾， 牛 勤， 孔祥明月， 杨钟灵. 基于同步脉冲的模式5信号个体识别方法[J]. 雷达科学与技术, 2025, 23(5): 523-528.[点击复制] |
| XIA Shaojun, HU Zebin, NIU Qin, KONG Xiangmingyue, YANG Zhongling. Specific Emitter Identification for Mode 5 Signal Based on Synchronous Pulse[J]. Radar Science and Technology, 2025, 23(5): 523-528.[点击复制] |
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| 摘要: |
| 敌我识别模式5信号采用Walsh软扩频、MSK调制等技术，提高信息容量和安全性的同时也使得对模式5信号的个体识别变得困难。针对这个问题，利用模式5信号同步脉冲码元固定的特点，提出两种针对模式5信号的个体识别方法：基于同步脉冲瞬时相位特征的个体识别方法和基于同步脉冲互相关特征的个体识别方法。仿真试验结果表明，在信噪比12 dB条件下，基于同步脉冲瞬时相位特征的个体识别方法正确率90.4%，基于同步脉冲互相关特征的个体识别方法正确率94.8%，且两种方法的性能都要优于传统个体识别方法。 |
| 关键词: 敌我识别模式5 个体识别 同步脉冲 瞬时相位 互相关 |
| DOI：DOI:10.3969/j.issn.1672-2337.2025.05.006 |
| 分类号:TN971 |
| 基金项目:军委科技委重点基础研究项目（No.2022-173ZD-002） |
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| Specific Emitter Identification for Mode 5 Signal Based on Synchronous Pulse |
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XIA Shaojun, HU Zebin, NIU Qin, KONG Xiangmingyue, YANG Zhongling
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1. The 38th Research Institute of China Electronics Technology Group Corporation, Hefei 230088, China;2. Unit 93145 of PLA, Nanjing 210000， China
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| Abstract: |
| Mode 5 signal used in the identification friend or foe （IFF） system adopts technologies such as Walsh soft spread spectrum and MSK modulation to improve the information capacity and security, while making specific emitter identification（SEI） of the Mode 5 signal difficult. To address this issue, two SEI methods for Mode 5 signal are proposed by using the fixed characteristics of synchronous pulse: SEI method based on the instantaneous phase features of synchronous pulses and SEI method based on the cross-correlation features of synchronous pulses. The simulation results show that under the condition of signal-to-noise ratio of 12 dB, the accuracy of the method based on the instantaneous phase feature is 90.4%, and the accuracy of the method based on the cross-correlation feature is 94.8%. The performance of both SEI methods proposed in this paper is better than the traditional ones. |
| Key words: IFF mode 5 specific emitter identification synchronous pulse instantaneous phase cross-correlation |
