| 基于对角积分双谱的雷达辐射源信号识别 |
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| 引用本文： | 肖乐群,张玉灵,赵拥军.基于对角积分双谱的雷达辐射源信号识别[J].信息工程大学学报,2012,13(1):95-99. |
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| 作者姓名： | 肖乐群 张玉灵 赵拥军 |
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| 作者单位： | [1]信息工程大学信息工程学院,河南郑州450002 [2]郑州大学升达经贸管理学院,河南郑州451191 |
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| 摘 要： | 双谱以其独特的抗噪优势，广泛应用于信号分析。双谱的数据量较为庞大，目前减少双谱数据量的方法中积分双谱的效果最好，然而各种积分双谱均存在一定的缺陷。文章提出了对角积分双谱，它沿平行于双谱次对角线的直线序列积分，不但避免了插值，而且包含了更多的相位和幅度信息。最后将对角积分双谱应用于低截获概率（LPI）雷达信号的特征提取。仿真条件下，对比分析了各种积分双谱的识别性能，结果表明对角积分双谱的识别性能优于其它积分双谱。
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| 关 键 词： | 雷达辐射源信号 分类识别 双谱 对角积分 |
Radar Emitter Signal Recognition Based on Diagonally Integral Bispectrum |
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| XIAO Le-qun,ZHANG Yu-ling,ZHAO Yong-jun.Radar Emitter Signal Recognition Based on Diagonally Integral Bispectrum[J].Journal of Information Engineering University,2012,13(1):95-99. |
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| Authors: | XIAO Le-qun ZHANG Yu-ling ZHAO Yong-jun |
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| Affiliation: | 1. Institute of Information Engineering, Information Engineering University, Zhengzhou 450002, China; 2. Shengda Economics ＆ Trade Management College, Zhengzhnu University, Zhengzhou 451191, China) |
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| Abstract: | The bispectrum technique is widely used in signal analysis for its unique advantages of noise immunity, but there is large amount of data. Among the methods of reducing the amount of data, the integral bispectrum method is the best. But there are still a variety of shortcomings for all kinds of integral bispectrum techniques. A new method of feature extraction called diagonally inte- gral bispectrum is proposed. By this method, bispectrum is integrated along the lines parallel to the diagonal line. This method not only avoids interpolation, but also contains more information. This new method is used to extract features of LPI radar signals. Under simulation conditions, the diagonoally integral bispectrum is compared with other methods. Results indicate that this new method is better. |
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| Keywords: | radar emitter signal recognition and classification bispectrum diaganally integral |
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