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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振动与冲击 ›› 2012, Vol. 31 ›› Issue (3) : 84-87.

论文

脉冲噪声下基于Myriad滤波及分形盒维数的频谱感知

赵春晖；马爽

作者信息 +

Spectrum sensing based on fractal box dimension and myriad filter in impulse noise

Zhao Chun-hui； Ma Shuang

Author information +

文章历史 +

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。

Abstract

To achieve the spectrum sensing in the impulse noise background, a spectrum sensing method based on Myriad filter and fractal box dimension is proposed in this paper. Alpha-stable noises affect the fractal box dimension of the signal. The Myriad filter can suppress the 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 as test statistics. Simulation results show that this method has good spectrum sensing performance in the Alpha-stable noise background.

导出引用

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

Zhao Chun-hui;Ma Shuang . Spectrum sensing based on fractal box dimension and myriad filter in impulse noise[J]. Journal of Vibration and Shock, 2012, 31(3): 84-87