火力与指挥控制2017，Vol.42Issue(1)：137-141,5.
一种改进的分数低阶矩协作频谱感知算法
Cooperative Spectrum Sensing Algorithm of an Improved FLOM
郭超 1张政保 1许鑫 1姚少林 2刘广凯1
作者信息
- 1. 军械工程学院,石家庄 050003
- 2. 电子信息系统复杂电磁环境效应国家重点实验室,河南 洛阳 471003
- 折叠
摘要
Abstract
In order to improve probability of detection of the fractional low order moment (FLOM) -based spectrum sensing under impulse noise,an improved algorithm is proposed in this paper.The median filter can effectively suppress the impulse noise,so the signal with impulse noise is processed by median filter,and then the fractional low order moment value of the filtered signal is calculated and taken as test statistic for FLOM.Simulation analysis the impact of different generalized SNR,dispersion index Alpha and collaborative users to the sensing performance,comparing with the ED and FLOM spectrum sensing method.The simulation results show that the improved FLOM method performance under impulsive noise is superior to the ED and FLOS.Moreover,the proposed method has better applicability with different modulation signals.关键词
频谱感知/α稳定噪声/中值滤波/分数低阶矩Key words
spectrum sensing/alpha-stable noise/median filter/FLOM分类
信息技术与安全科学引用本文复制引用
郭超,张政保,许鑫,姚少林,刘广凯..一种改进的分数低阶矩协作频谱感知算法[J].火力与指挥控制,2017,42(1):137-141,5.
