基于频谱感知的信号能量检测算法研究

Research on Signal Energy Detection Algorithm Based on Spectrum Sensing

为提高对信息通信中信息泄露检测的精确度和效率,主要对能量检测法、匹配滤波检测法和循环特征检测法3种常用算法进行论述。通过对比各算法的特征,分析噪声对检测效果的影响,将双门限判决引入能量检测算法,提出了一种基于频谱感知的改进型能量检测算法。结果显示,该算法在检测通信信息泄露时具有更高的精确度和效率。

In order to improve the information communication of information leakage detection in precision and efficiency,of the energy method,matched filtering techniques and circulation characteristics test three kinds of commonly used algorithm is discussed in this paper.Comparing the characteristic of the algorithm,the effects of the analysis of noise detection will double threshold decision algorithm is introduced.This paper proposes a modified energy detection based on spectrum sensing algorithm,the algorithm has higher communication signals leak detection accuracy and efficiency.