| 基于累计量的干扰信号调制识别算法 |
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| 引用本文： | 程汉文,朱雷,吴乐南.基于累计量的干扰信号调制识别算法[J].电子与信息学报,2009,31(7):1741-1745. |
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| 作者姓名： | 程汉文 朱雷 吴乐南 |
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| 作者单位： | 1. 东南大学信息工程与科学学院,南京,210096;防空兵指挥学院,郑州,450052
2. 东南大学信息工程与科学学院,南京,210096 |
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| 摘 要： | 为解决正常通信中检测到非法或干扰信号时的调制识别问题，该文提出了一种共信道干扰信号调制识别算法。分析了相偏、频偏等未知参数对共信道信号四阶累积量的影响并给出降低这些影响的方法。以信号四阶累积量为识别特征对干扰信号的调制方式进行识别。同时给出干扰信号相偏、频偏等参数的估计。实验结果表明了所提算法的有效性。
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| 关 键 词： | 调制识别 共信道 干扰信号 累积量 |
| 收稿时间： | 2008-7-18 |
| 修稿时间： | 2009-1-19 |
Modulation Classification Algorithm for Jamming Signal Based on Cumulant |
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| Cheng Han-wen,Zhu Lei,Wu Le-nan.Modulation Classification Algorithm for Jamming Signal Based on Cumulant[J].Journal of Electronics & Information Technology,2009,31(7):1741-1745. |
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| Authors: | Cheng Han-wen Zhu Lei Wu Le-nan |
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| Institution: | School of Information Science and Engineering, Southeast University, Nanjing 210096, China; Air Defense Forces Command Academy, Zhengzhou 450052, China |
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| Abstract: | In order to solve the modulation classification problem of detecting illegal or jamming signal in normal communication, a new modulation classification algorithm for the same channel jamming signal is proposed. Firstly, the effects of unknown parameters, such as phase offset and frequency offset, on forth-order cumulant of co-channel signal are analyzed and the related improving methods are presented. Then, the modulation classifications of jamming signal are done by forth-order cumulant as classification features. Simultaneously, its phase offset and frequency offset are estimated. The experiment results show the validity of the proposed algorithm. |
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| Keywords: | Modulation classification Co-channel Jamming signal Cumulant |
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