| 分形噪声中的信号检测 |
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| 引用本文： | 谢文录, 谢维信. 分形噪声中的信号检测[J]. 电子与信息学报, 1998, 20(2): 175-181. |
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| 作者姓名： | 谢文录 谢维信 |
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| 作者单位： | 西安电子科技大学电子工程学院，西安电子科技大学电子工程学院 西安 710071，西安 710071 |
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| 摘 要： | 本文讨论了在1/f类分形噪声中的信号检测问题,利用小波变换对1/f噪声的近似白化作用,来消除1/f噪声间的相关性。文中给出了白化滤波器的传递函数,信号检测的判决规则和接收系统结构;分析了系统的接收性能;最后给出了仿真实验结果。
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| 关 键 词： | 信号检测 分形 小波分析 1/f类噪声 |
| 收稿时间： | 1996-10-23 |
| 修稿时间： | 1997-07-11 |
DECTECTION OF KNOWN SIGNALS IN 1/f FRACTAL NOISE |
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| Xie Wenlu, Xie Wenxin. DECTECTION OF KNOWN SIGNALS IN 1/f FRACTAL NOISE[J]. Journal of Electronics & Information Technology, 1998, 20(2): 175-181. |
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| Authors: | Xie Wenlu Xie Wenxin |
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| Affiliation: | School of Electronic Engineering Xidian University Xi'an 710071 |
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| Abstract: | Based on the whitening property of wavelet transformation for 1/f noise, the problem of detecting deterministic signals in the presence of 1/f fractal noise is addressed. The transfer function of whitening filter is provided, the receiver structure based on Karhunen-Loeve expansion and the decision rule are also given. Finally performance of the receiver is analyzed and the experimental results are presented. |
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| Keywords: | Signal detection Fractal Wavelet transformation 1/f-like noise |
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