| 线性平滑的信号调制识别方法 |
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| 引用本文： | 姚亚峰,黄载禄.线性平滑的信号调制识别方法[J].系统工程与电子技术,2005,27(6):1132-1134. |
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| 作者姓名： | 姚亚峰 黄载禄 |
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| 作者单位： | 华中科技大学电子与信息工程系,湖北,武汉,430074 |
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| 基金项目： | 国家"863"高技术计划基金资助课题(2002AA119010) |
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| 摘 要： | 针对如何提高调制识别算法在低信噪比时的识别性能,是调制识别技术走向实用中必须解决的问题,提出采用线性平滑方法对接收信号进行预处理,然后再提取特征。提取的分类特征削弱了噪声影响,提高了抗干扰性能,能够在较低信噪比条件下正确区分信号。实验表明,平滑处理实现简单,对算法在低信噪比时的识别性能改善明显。
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| 关 键 词： | 参数估计 调制识别 平滑 信号包络 |
| 文章编号： | 1001-506X(2005)06-1132-03 |
| 修稿时间： | 2004年4月2日 |
Signal modulation recognition based on linear smoothing |
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| YAO Ya-feng,HUANG Zai-lu.Signal modulation recognition based on linear smoothing[J].System Engineering and Electronics,2005,27(6):1132-1134. |
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| Authors: | YAO Ya-feng HUANG Zai-lu |
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| Abstract: | How to improve the performance of modulation recognition method in low signal noise ratio conditions is an important problem for its application. A method using linear smoothing to preprocess the signal is presented at first, then the key feature is extracted. With the key feature obtained, antijamming ability is improved and various signals can be recognized in low SNR. Simulation result indicates the smoothing procedure is simple to realize and the improvement is obvious. |
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| Keywords: | parameter estimation modulation recognition smoothing signal envelope |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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