计算机应用研究2011，Vol.28Issue(6)：2313-2316,4.DOI:10.3969/j.issn.1001-3695.2011.06.085
基于多子带信号采样和小波变换的宽带频谱感知
Wideband spectrum sensing approach based on multiband signal sampling and wavelet transform
摘要
Abstract
Based on with MWC, this paper proposed a wideband spectrum sensing approach based on multiband signal sampling and wavelet transform.Firstly obtained sub-bands signals by low rate sampling, and then, proposed an estimation method for noise power and threshold, such that the spectrum sensing for signal sub-bands could be carried out by energy detection, at last, used the edge detection for signal sub-bands by using wavelet transform to obtain the exact locations of spectrum occupied by primary users.Simulation results show that the proposed wideband spectrum sensing approach is feasible and effective.关键词
认知无线电/宽带频谱感知/多子带信号采样/调制宽带转换系统/小波变换/能量检测Key words
cognitive radio/ wideband spectrum sensing/ multiband signal sampling/ modulated wideband converter(MWC)/ wavelet transform/ energy detection分类
信息技术与安全科学引用本文复制引用
赵知劲,张伟卫,郑仕链..基于多子带信号采样和小波变换的宽带频谱感知[J].计算机应用研究,2011,28(6):2313-2316,4.基金项目
电科院预研基金资助项目(513060401) （513060401）
浙江省大学生创新创业孵化项目(ZX100701060) （ZX100701060）
浙江省教育厅新苗计划资助项目(2008R40G2040115) （2008R40G2040115）
