桂林电子科技大学学报2013，Vol.33Issue(4)：259-263,5.
基于协方差理论的信号检测改进算法
An improved signal detection algorithm based on covariance
摘要
Abstract
Energy detection algorithm is easy to be influenced by the noise uncertainly,so the covariance detection algorithm is adopted to detect signals,then the threshold is optimized,an improved algorithm is proposed based on the minimum detection error.The improved algorithm can not only overcome the disadvantages of energy detection algorithm,but also improve the detection performance compared with covariance detection algorithm.The simulation results show that the detection probability of the improved algorithm increases 20％ when SNR is-20 dB.关键词
能量检测/协方差/信噪比Key words
energy detection/ covariance/ SNR分类
信息技术与安全科学引用本文复制引用
邓璋,徐以涛,王乃超,张尧然..基于协方差理论的信号检测改进算法[J].桂林电子科技大学学报,2013,33(4):259-263,5.基金项目
国家973项目(2009CB320400) （2009CB320400）
