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- wavelet packet energy analysis 小波包能量分析
- And then the relative wavelet packet energy in every subspace for every ASEMG and the wavelet entropy of every ASEMG were calculated. 之后,计算每个子空间的相对小波包能量和每个信号的小波包熵。
- 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。
- Two structural damage alarming indices including energy ratio deviation(ERD) and energy ratio variance(ERV) were put forward based on wavelet packet energy spectrum decomposed from the structural dynamic responses. 基于结构动力响应的小波包能量谱提出了两种结构损伤预警指标:能量比偏差和能量比方差。
- Application of Frequency Band Energy Analysis Using Wavelet Packet in Traveling Wave Characteristic Extraction of Feeder Lines 小波包频带能量分析在馈电线路行波特征提取中的应用
- Wavelet packet energy characteristic identification of water flooded layer 水淹层小波包能量特征识别方法
- Alarming method for cable damage of long-span cable-stayed bridges based on wavelet packet energy spectrum 基于小波包能量谱的大跨斜拉桥拉索损伤预警方法
- Structural Damage Alarming Indices for Long-Span Bridges Based on Wavelet Packet Energy Spectrum 基于小波包能量谱的大跨桥梁结构损伤预警指标
- The Application of Wavelet Packet Energy Feature to the Fault Diagnosis of Automotive Transmission Bearing 小波包能量特征法在汽车变速器轴承故障诊断中的应用
- Detection and Classification of Power Quality Short-term Disturbance Based on Wavelet Packet Energy Chart 基于小波包能量谱的电能质量短期扰动检测和分类方法
- Identification method of gas-liquid two-phase flow pattern based on wavelet packet energy feature 基于小波包能量特征的气液二相流流型识别方法
- Firstly, the characters of wavelet transform and wavelet packet analysis were introduced. 首先，简略地介绍了小波变换与小波包分析的特点。
- Based on the frequency domain feature, energy eigenvector of frequency domain is presented using wavelet packet analysis method, and the way of best tree is used to choose symptom. 用转子振动试验台模拟了汽轮机典型故障,根据其频域变化特性,采用小波包分析对其建立频域能量特征向量,并根据最佳分解树进行了特征选择。
- The high time-frequency characteristic of wavelet packet analysis is utilized to decompose the vibration signal, and slag characteristic parameter is composed of signal energy in sub frequency bands. 首先，利用小波包分析的高时频分辨特性将振动信号分解到各个频带上，并以各频带信号的能量来构造用于下渣检测的特征参数。
- The spiral distance formula is given by energy analysis. 用能量分析方法导出了螺距设计公式。
- The theory of wavelet packet transform and the method of voltage signal analysis with wavelet packet was presented. 简述了小波包变换的基本原理及利用小波包对电压信号进行分解的方法。
- wavelet packet energy entropy 小波包能谱熵
- Flexibility and the precise ability of local analysis in wavelet packet analysis during signal denoising are analyzed. 分析了小波包分析在信号去噪中所具有灵活精确的局部解析能力；
- wavelet packet energy reorient 小波包能量矩
- Focus:Energy analysis and calculation on vapor compression refrigeration cycle. 重点:蒸气压缩制冷循环的能量分析与计算。
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
