| 基于谱线特征的调制方式自动识别方法 |
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| 引用本文： | 赵岚. 基于谱线特征的调制方式自动识别方法[J]. 中国电子科学研究院学报, 2012, 7(2): 182-185,190 |
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| 作者姓名： | 赵岚 |
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| 作者单位： | 通信信息控制和安全技术重点实验室,浙江嘉兴314033 中国电子科技集团公司第36研究所,浙江嘉兴314033 |
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| 摘 要： | 研究了基于谱线特征的通信信号调制方式自动识别方法,从信号的功率谱、二次方谱、四次方谱及包络平方谱中,提取出一组鲁棒性强的特征参数。在不需要先验知识的情况下,对卫星通信中常用的调制信号进行了自动识别。仿真结果表明,在信噪比大于5 dB时,总体识别率能达到97%以上,方案具有很强的实用性。
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| 关 键 词： | 调制识别 谱特征 卫星通信 特征提取 |
Automatic Recognition Based on Spectrum Feature for Common Used Modulations |
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| ZHAO Lan. Automatic Recognition Based on Spectrum Feature for Common Used Modulations[J]. Journal of China Academy of Electronics and Information Technology, 2012, 7(2): 182-185,190 |
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| Authors: | ZHAO Lan |
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| Affiliation: | ZHAO Lan1,2(1.Science and Technology on Communication Information Security Control Laboratory,Zhejiang Jiaxing 314033,China; 2.The 36th Research Institute of CETC,Zhejiang Jiaxing 314033,China) |
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| Abstract: | It is concerned with automatic modulation recognition of communication signal based on the spectrum feature.A set of robust feature parameters are extracted from signal power spectrum,square spectrum,quartic spectrum and the square spectrum of signal’s envelop.The proposed scheme can recognize many common used modulated signals in the satellite communication without any prior knowledge.Simulation results show that the scheme can achieve more than 97% recognition accuracy when SNR is above 5 dB.This method is practical. |
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| Keywords: | modulation recognition spectrum feature satellite communication feature extraction |
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