1) Wavelet packet of sections and energy-moment
区间小波包能量矩
2) wavelet packet energy moment
小波包能量矩
1.
An improved feature extraction method based on wavelet packet energy moment is presented.
提出了一种基于卷积型小波包能量矩的特征提取方法。
3) wavelet packet of sections
区间小波包
1.
The result shows that,compared with ordinary method,the pick-up method based on wavelet packet of sections and energy-moment feature c.
基于小波包分析和神经网络的声发射信号缺陷检测方法,提出采用区间小波包分解与能量距相结合作为声发射信号的特征向量,取代了传统的"小波包-能量"特征提取方法,并以金属罐形容器罐底缺陷诊断为例验证了该方法的有效性。
4) wavelet energy moment
小波能量矩
1.
The wavelet energy moment can reflect the distribution of signal energy in frequency domain and that in time domain indirectly as well.
信号能量的时频分布可以反映不同信号的本质区别,小波能量矩既可以反映信号能量在频域上的分布,也可以间接体现能量在时域上的分布。
6) wavelet packet energy
小波包能量
1.
A novel speech enhancement method based on wavelet packet energy in strong noise background
强噪声条件下基于小波包能量的语音增强新算法
2.
Gear fault classification based on Gaussian mixture model and wavelet packet energy
高斯混合模型与小波包能量相结合的齿轮故障分类
3.
The pressure signals of normal and abnormal combustion were decomposed by wavelet packet and the wavelet packet energy was extracted.
对氢发动机正常燃烧和异常燃烧压力信号进行了小波包分解,提取出小波包能量。
补充资料：区间
表示实变量x的取值范围。设a、b是两个实数，且a＜b，满足a＜x＜b的实数x的集合记为(a，b)或］a，b［，称为开区间；满足a≤x≤b的实数x的集合记为［a，b］，称为闭区间。满足a≤x＜b或a＜x≤b的实数x的集合，分别记为［a，b)、［a，b［或(a，b］、］a，b］，称为半开半闭区间。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条