| 一种低信噪比信号的调制盲识别方法 |
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| 引用本文： | 蔡权伟,魏平,肖先赐.一种低信噪比信号的调制盲识别方法[J].电子科技大学学报(社会科学版),2006(2). |
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| 作者姓名： | 蔡权伟 魏平 肖先赐 |
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| 作者单位： | 电子科技大学电子工程学院 成都610054 |
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| 摘 要： | 提出了一种利用包络高阶特征J进行调制方式识别的方法。该方法具有计算简单、无需知道信号的先验信息,同时具有较好的噪声抑制等特点,能在低信噪比情况下快速、有效地进行盲调制识别,易于实时应用和工程的实现。其仿真结果表明:该方法在0dB信噪比条件下能够识别信号的调制方式,性能优于传统的包络调制识别方法。
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| 关 键 词： | 盲调制识别 包络高阶特征 噪声抑制 低信噪比 |
A Blind Modulation Recognition Method under the Lower SNR |
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| CAI Qaun-wei,WEI Ping,XIAO Xian-ci.A Blind Modulation Recognition Method under the Lower SNR[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2006(2). |
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| Authors: | CAI Qaun-wei WEI Ping XIAO Xian-ci |
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| Abstract: | A higher order envelope characteristic J based method is proposed in this paper for the automatic modulation recognition. The higher order envelope characteristic J has a lot of characteristics such as the computational simplicity, no demand for prior information and good performance of suppressing the noise. Therefore it can recognize the signal modulations quickly and efficiently in the lower SNR and can be implemented real-timed and practically. Simulation results indicate that the performance of proposed method is much better than the classical envelope modulation methods. |
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| Keywords: | blind modulation recognition noise suppressing higher order envelope characteristic lower signal noise ratio |
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