| 基于决策论的数字调制信号识别方法 |
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| 引用本文： | 冯晓东,曾军.基于决策论的数字调制信号识别方法[J].电子科技,2015,28(4):124-127. |
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| 作者姓名： | 冯晓东 曾军 |
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| 作者单位： | (重庆邮电大学 电信业务支撑系统研究所,重庆 400065) |
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| 摘 要： | 以决策论为基础提出了一种改进的数字调制信号识别方法,该方法仅需4个相对简单的特征参数,就能识别2ASK、4ASK、2FSK、4FSK、2PSK、4PSK和16QAM这7种数字调制信号。仿真结果表明,该方法复杂度较低,识别正确率有较大提高,尤其对于2ASK、4ASK、MPSK/MFSK及16QAM的识别,在信噪比较低的情况下,具有较好的识别效果。
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| 关 键 词： | 调制识别 决策论 特征参数 信噪比 |
A Method for Digital Modulation Recognition Based on Decision Theory |
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| FENG Xiaodong
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ZENG Jun.A Method for Digital Modulation Recognition Based on Decision Theory[J].Electronic Science and Technology,2015,28(4):124-127. |
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| Authors: | FENG Xiaodong ZENG Jun |
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| Affiliation: | (Telecom Services Support System Research Institute,Chongqing University of Posts and Telecommunications,Chongqing 400065,China) |
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| Abstract: | An improved method is proposed to identify the types of the digital modulation signals based on the decision theory.By this method,only 4 relatively simple characteristic parameters are needed to identify the seven digital modulation signals,2ASK,4ASK,2FSK,4FSK,2PSK,4PSK and 16QAM.Computer simulations show that the complexity of the improved method is reduced greatly,and the correct recognition rate is increased significantly.It performs specially well in identifying the four digital modulation signals,2ASK,4ASK,MFSK/MPSK and 16QAM,in the case of low signal to noise rate. |
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| Keywords: | modulation recognition decision theory feature parameters signal to noise rate |
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