| 脉冲噪声下基于Myriad滤波及分形盒维数的频谱感知 |
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| 引用本文： | 赵春晖,马爽.脉冲噪声下基于Myriad滤波及分形盒维数的频谱感知[J].振动与冲击,2012,31(3):84-87. |
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| 作者姓名： | 赵春晖 马爽 |
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| 作者单位： | 哈尔滨工程大学信息与通信工程学院, 哈尔滨150001 |
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| 摘 要： | 为了实现脉冲噪声背景下频谱感知，本文提出基于Myriad滤波及分形盒维数的频谱感知方法。Alpha稳定分布噪声影响信号的分形盒维数值。由于Myriad滤波可以抑制Alpha稳定噪声，所以先对接收信号Myriad滤波，再计算其分形盒维数值作为检验统计量。仿真结果表明，该方法在Alpha稳定分布噪声下具有良好的频谱感知性能
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| 关 键 词： | 频谱感知 Alpha稳定噪声 Myriad滤波 分形盒维数 |
| 收稿时间： | 2010-9-25 |
| 修稿时间： | 2011-1-25 |
Spectrum sensing based on fractal box dimension and myriad filter under impulsive noise |
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| ZHAO Chun-hui
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MA Shuang.Spectrum sensing based on fractal box dimension and myriad filter under impulsive noise[J].Journal of Vibration and Shock,2012,31(3):84-87. |
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| Authors: | ZHAO Chun-hui MA Shuang |
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| Affiliation: | Information and Communication Engineering College, Harbin Engineering University, Harbin150001, China |
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| Abstract: | To achieve the spectrum sensing under impulsive noise background,a spectrum sensing method based on Myriad filter and fractal box dimension was proposed.Alpha-stable noises may affect the fractal box dimension of the signal and the Myriad filter can suppress Alpha-stable noise.So the signal with Alpha-stable noise was processed by Myriad filter,and then the fractal box dimension of the filtered signal was calculated and taken as test statistic.Simulation results show that the method has good spectrum sensing performance under Alpha-stable noise background. |
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| Keywords: | spectrum sensing alpha-stable noise myriad filter fractal box dimension |
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