1) wavelet and wavelet packets
小波和小波包
1.
A series of techniques,such as WVD(wigner-ville distribution),STFT(short-time fourier transform),wavelet and wavelet packets analysis,were adopted for processing nonstationary dynamic signals.
以大型电铲为例，采用ＷＶＤ（Ｗｉｎｇｅｒ－Ｖｉｌｌｅｄｉｓｔｒｉｂｕｔｉｏｎｓ），ＳＴＦＴ（ｓｈｏｒｔｔｉｍｅｆｏｕｒｉｅｒｔｒａｎｓｆｏｒｍ），小波和小波包分析构成处理非平稳动态信号系列技术，揭示变工况（变速、变负载、非平稳、非线性）状态下，大型电铲提升系统工作时出现的摩擦、冲击、磨损、附加脉冲及轴承早期故障等的特征，结果表明对非平稳运行工况是能够监测诊断的。
2) wavelet transform (WT) and wavelet packet transform (WPT)
小波变换和小波包变换
3) Wavelet and wavelet package transform
小波和小波包变换
4) wavelet packet filtering
小波包滤波
1.
On the basis of wavelet packet filtering method,a noise testing method for electric motor was proposed in this paper.
利用计算机声卡的A/D转换功能来采集电动机的噪声信号,应用小波包滤波方法消除与回转频率无关的噪声干扰,提取与转速直接相关的振动信号。
2.
Wavelet packet filtering algorithm was used to eliminate the noise that is independent of the frequency of rotating and pick up the real vibration.
本文基于小波包滤波方法,提出一种应用计算机声卡的电动机噪声检测方案。
5) Harmonic wavelet packet
谐波小波包
1.
This paper discussed the concept of harmonic wavelet and general harmonic wavelet,and realized the harmonic wavelet packet algorithm.
论述了谐波小波、广义谐波小波的概念以及谐波小波包的算法实现,并将谐波小波应用于带通滤波器的窄带滤波中,得到了满意的仿真效果。
2.
For the purpose of finding the potentially critical fault in time and extracting the weak signal to prevent the unnecessary financial losses,so making use of the box-like spectrum and frequency-domain continuous distribution of harmonic wavelet,and the weak signal is extracted with harmonic wavelet packet transformation of simulation signal.
在工程中,在故障发生的早期,其信号一般比较微弱,为了能在故障发生的早期及时地发现潜在的危险故障并能提取微弱的故障信号,防止不必要的经济损失,利用谐波小波在频域连续分布且具有严格的盒形谱特性,通过对仿真信号的谐波小波包变换,实现了对微弱信号的频域提取。
6) wavelet packet
小波包
1.
A study on the extraction and prediction of blasting seismic wavecharacteristics by wavelet packets technique;
基于小波包技术的爆破地震波特征提取及预报
2.
Analysis of the oil pipeline leakage feature vector extraction based on wavelet packet;
基于小波包分析的输油管道泄漏特征向量提取方法
3.
Use of wavelet packet and principal composition analysis method for feature extraction of chatter in milling;
铣削颤振特征提取的小波包和主成分分析方法
补充资料：廅波摩那
【廅波摩那】
（界名）Apraman!abha，无量光天之梵名。人至此天，则身放光明无量。玄应音义十二曰：“廅波摩那，晋言无量光天也。”可洪音义一曰：“廅波，四阿唅暮抄云阿波摩那阿娑，此言无量光。”
（界名）Apraman!abha，无量光天之梵名。人至此天，则身放光明无量。玄应音义十二曰：“廅波摩那，晋言无量光天也。”可洪音义一曰：“廅波，四阿唅暮抄云阿波摩那阿娑，此言无量光。”
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