摘要
针对核爆次声探测系统中实测的闪电干扰次声信号进行了特征分析。采用去均值、去大气扰动、滤波、归一化等数据预处理之后,用统计理论对次声信号的频谱特性进行了分析,根据统计结论获得闪电次声信号的频谱特性。分析结果表明闪电次声信号特征有别于核爆次声信号特征,提取此特征值可组成能用于核爆次声探测分类识别的特征向量。
The paper analyzes character of lightning infrasonic signal detected in nuclear infrasound monitor system. After mean removal, atmosphere disturb removal, filter, unitary dispose, statistical theory is used to analyze the frequency character of infrasonic signals. According to the statistical conclusion the power spectrum of lightning is gotten. The result show that the character of power spectrum of lightning infrasonic signal is different from nuclear explosion infrasonic signal, eigenvalues can be got from this character for identification and classification of nuclear explosion infrasonic detection.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2013年第6期724-727,共4页
Nuclear Electronics & Detection Technology
基金
博士后科学基金面上资助(20090451530)
关键词
核爆次声信号
闪电次声信号
分类算法
次声识别
核爆监测
nuclear explosion infrasonic identification
nuclear explosion monitor signal
lightning infrasonic sound
classification algorithm
infrasound
