Whole cycle symptom abstract and fault diagnosis based on the wavelet packet decomposition;
基于小波包分解的整循环征兆提取与故障识别
Iris recognition algorithm based on wavelet packet decomposition;
基于小波包分解的虹膜识别算法
Statistical Analysis of JPEG Images Based on the Wavelet Packet Decomposition;
基于小波包分解的JPEG图像统计特性研究
Signals of cutting force and vibration are measured with multi-sensor and features in frequency domain and time-frequency domain are extracted by using wavelet package decomposition.
利用多传感器对切削力和振动信号进行监测,通过频率变换提取切削力特征量,采用小波包分解技术提取振动信号特征量。
Ways about how to extract features from cutting signal process based on wavelet package decomposition were studied.
研究了基于小波包分解的切削信号特征提取方法,首先将切削信号进行小波包分解,计算信号分解到各频带区间内的能量并对其进行归一化,并将其作为切削信号的特征向量输入到支持向量机回归分析模型。
firstly,bootstrapping analysing of the cutting signal using wavelet package decomposition,then computing the energe in each spectrum section and scaling,now getting the energy distribution chart and transition curve of different section,from the curve we could clearly see that it was really a very good representation of the cutting c.
首先逐次对切削信号进行小波包分解,然后计算各频带区间内的能量并对能量进行归一化处理,于是得到了信号在各区间的能量分布图以及各区间的能量变化曲线,从能量的变化曲线可以很清楚的看到,各区间的能量分布很好地反应了切削颤振过渡的特征。
Application of wavelet packet analysis and Welch method in power spectrum evaluation of arc sound;
小波包分解Welch平均法在焊接电弧声功率谱估计中的应用
In this paper,a new description method of electrochemical noise (EN)using feature vector subbands' energy obtained by wavelet packets decomposition was described.
建立了基于小波包分解的电化学噪声子带能量表征方法 ,测试了高纯铝在含Cl-溶液中不同条件下的电化学噪声 ,分析了所测电化学噪声信号的时域特征、PSD特征及小波包分解子带能量特征 。
The image is compressed efficiently based on the wavelet packets decomposition.
在对图像进行小波包分解的基础上实现图像压缩。
Image was compressed efficiently based on the wavelet packets decomposition.
在对图像进行小波包分解的基础上实现图像压缩 。
The fault characteristics of the aero-engine rotor obtained by the application of wavelet packet technique are was put into the grey prognosis system.
在灰色预测模型的基础上,提出了改进背景值和初始值两种优化形式,对灰色系统进行优化,并应用小波包分解技术提取发动机转子振动信号的故障特征作为灰色预测系统的输入值,实现了对发动机转子的故障预测;通过实验仿真证明,这个优化灰色预测模型预测精度高,误差小,应用于航空发动机转子故障预测是完全可行和有效的。
Based on the wavelet packet method, a dual decomposition algorithm for extracting coherent structures from turbulent wake flows after blunt bodies is presented.
根据湍流相干结构和非相干结构不相关的特性,提出了一种钝体尾流双重小波包分解的新算法,将湍流的运动分解成相干分量和非相干分量。
A method of fault diagnosis for the inertial apparatus based on Wavelet Packet is discussed.
提出了一种基于小波包分解的惯性器件故障检测与诊断方法,该方法利用小波包精确细分的特点,分别对正常系统和故障系统的观测信号进行小波包分解,提取其特征信息,从而实现对惯性器件的故障诊断。
Mechanical vibration signal analysis based on wavelet packet
基于小波包分解的机械振动信号分析
Speaker Rcognition Using Wavelet Packet Decomposition Based on MPEG-I;
基于MPEG-1和小波包分解的说话人识别
Speech Compression Based on Best Wavelet Packet Analysis;
基于最佳小波包分解的语音压缩研究
Analysis of Different Functional States EEG Signal Based on Wavelet Packet Decomposition
基于小波包分解的不同状态下脑电信号分析
Wavelet packet decomposition-based on fuzzy clustering for gene expression data
小波包分解和模糊聚类下的基因表达数据分析
An Application of Wavelet Packet Decomposition and Reconstruction Algorithm to Active Energy Measurement
小波包分解重构算法在有功电能计量中的应用
Study on Color Image Digital Watermark Algorithm Based on Wavelet Packet Decomposition
基于小波包分解的彩色图像水印算法研究
Based on the Best Wavelet Packet Decomposition of the Speech Signal Feature Extraction
基于最佳小波包分解的语音信号特征提取
Adaptive Blind Fragile Watermarking Algorithm Based on Wavelet Packets
基于小波包分解的自适应盲脆弱水印算法
Identifying Gas-liquid Two-phase Flow Patterns Based on HMM and Wavelet Packet Decomposition
基于HMM和小波包分解的气液两相流流型识别
Handwritten Amount Chinese Characters Recognition Based on Wavelet Packet Decomposition
基于小波包分解的手写体金融汉字识别
Speech signal data compression based on non-complete wavelet packet resolution
基于不完全小波包分解的语音信号数据压缩
Study on damage detection in frame structure based on wavelet packet analysis
基于小波包分解的框架结构损伤识别研究
Gyroscope Fault Diagnosis Based on the Three_layer Wavelet Package Transform
基于三层小波包分解的陀螺仪故障诊断
Application of Wavelet Packet Decomposition in Signal Preprocessing of Angle of Attack Sensor
小波包分解在迎角传感器信号预处理中的应用
A Method Based on Multi-Resolution Analysis of Wavelet and Wavelet Packet Transform for Harmonics Analysis of Power Quality;
基于小波多分辨率分析和小波包分解的电能质量谐波分析方法的研究
Application of Wavelet Packet Transform in Processing Ultrasonic Testing Echo Signals;
小波包分解在超声检测缺陷回波信号处理中的应用
Fault Diagnosis for Gear Based on Wavelet Packet Resolution and Fractal Theory
基于小波包分解和分形理论的齿轮故障诊断系统
