| 基于小波变换的无线电引信目标识别研究 |
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| 引用本文： | 单剑锋,翟波.基于小波变换的无线电引信目标识别研究[J].弹箭与制导学报,2009,29(6). |
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| 作者姓名： | 单剑锋 翟波 |
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| 作者单位： | 1. 南京邮电大学电子科学与工程学院,南京,210003
2. 辽宁石油化工大学,辽宁抚顺,113001 |
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| 基金项目： | 南京邮电大学引进人才科研启动基金 |
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| 摘 要： | 根据无线电引信回波多普勒信号功率主要集中在低频部分的特点,对淹没在噪声中的无线电引信回波信号进行小波分解,提取低频段不同频带内信号能量作为特征,用Fisher判别方法对目标进行检测.针对不同信噪比,对某典型无线电引信回波信号进行定量研究,实验结果表明该方法是有效的.
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| 关 键 词： | 小波变换 无线电引信 特征提取 |
Wavelet Based Target Detection for Radio Fuze Signal |
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| SHAN Jianfeng,ZHAI Bo.Wavelet Based Target Detection for Radio Fuze Signal[J].Journal of Projectiles Rockets Missiles and Guidance,2009,29(6). |
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| Authors: | SHAN Jianfeng ZHAI Bo |
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| Affiliation: | SHAN Jianfeng1,ZHAI Bo2 (1 College of Electronic Science , Engineering,Nanjing University of Posts , Telecommunications,Nanjing 210003,China,2 Liaoning Shihua University,Liaoning Fushun 113001,China) |
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| Abstract: | Feature extraction of radio fuze signal using wavelet transform is discussed in this paper. The signal is first decomposed by wavelet transform,and on the basis,the decomposed coefficicients are reconstructed to form a new time series,from which some energy parameters can be extracted by time-domain analysis. The target signal is detected by Fisher discrimination criterion. The effectiveness of the method is verified by a typical radio fuze signals with different signal to noise ratio( SNR). |
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| Keywords: | wavelet transform(WT) radio fuze feature extraction |
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