| 超宽带信号检测中基于新阈值函数的小波去噪方法研究 |
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| 引用本文： | 王昌宝,郑世杰.超宽带信号检测中基于新阈值函数的小波去噪方法研究[J].国外电子测量技术,2009,28(6):17-20,27. |
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| 作者姓名： | 王昌宝 郑世杰 |
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| 作者单位： | 电子工程学院,合肥,230037 |
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| 摘 要： | 小波阈值去噪是信号处理中一种重要的去噪方法。为了提高超宽带通信信号的检测性能,获得更高的检测信噪比,基于小波变换以及小波阈值去噪的原理,提出了一种新的阈值处理方法,进而对跳时脉冲位置调制超宽带（TH-PPM-UWB）信号用新方法的去噪结果进行分析比较,仿真试验结果表明,新的小波阈值法去噪效果明显,在信噪比和均方根误差上均优于传统的软阈值和硬阈值方法。
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| 关 键 词： | 小波变换 超宽带信号 新阈值去噪 |
Research of wavelet de-noising method based on new threshold function in UWB signal detection |
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| Wang Changbao,Zheng Shijie.Research of wavelet de-noising method based on new threshold function in UWB signal detection[J].Foreign Electronic Measurement Technology,2009,28(6):17-20,27. |
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| Authors: | Wang Changbao Zheng Shijie |
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| Affiliation: | Electronic Engineering Institution;Hefei 230037;China |
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| Abstract: | Wavelet threshold de-noising is an important de-noising method in the signal processing.To improve the performance of ultra wide band communication signal detection and get higher detectable signal to noise ratio,A new threshold function of wavelet threshold de-noising is presented based on the theory of wavelet transform and the wavelet threshold de-noising,and the outcomes of de-noise of TH-PPM-UWB signals by the new method are analyzed and compared, simulation results indicate that the de-noising effect ... |
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| Keywords: | wavelet transform ultra wide band signal new threshold de-noising |
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