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- Analysis of Wavelet Scalogram of Blood Flow Ultrasonic Doppler Signal. 小波尺度图分析法及其在超声血流多普勒信号中的应用。
- Title： Analysis of Wavelet Scalogram of Blood Flow Ultrasonic Doppler Signal. 关键词：小波变换；付里叶变换；多普勒信号；血流；频谱分析
- Secondly, to the nonstationarity of diesel engine noise, this paper focuses on the extraction of time frequency feature using wavelet scalogram. 其次针对噪声信号的非平稳性，研究基于小波尺度谱噪声分量的时频特征分析。
- In complicated frequency components domain, wavelet scalogram and assigned wavelet scalogram were used to further analyze vibration signals. 在频率成分较复杂的地方，利用小波尺度图和再分配小波尺度图进行细化分析。
- Results show that reassigned wavelet scalogram has higher time-frequency resolution than wavelet scalogram and can well identify such close low-frequency components. 结果表明，再分配小波尺度图具有高的时频分辨率，可以清楚地识别出频率成分接近的低频分量；
- The collected vibration signals with looseness faults at vertical direction have been snalyzed by the 3-D waterfall spectrum, wavelet scalogram and trajectory. 利用三维谱阵图、小波尺度图和轴心轨迹图对采集到的带有松动故障的竖直方向振动信号进行了分析。
- At last,the experiment was made to investigate the pedestal looseness by model test rig and the fault signals were analyzed by the 3D waterfall spectra,trajectory and wavelet scalogram. 最后利用转子模型实验台,对支座松动故障进行实验研究,采用三维瀑布图、轴心轨迹图和小波尺度图对故障信号进行了分析研究。
- Wavelet Scalogram and Application for Geophysical Well 地球物理测井序列的小波波谱方法
- USING WAVELET SCALOGRAM FOR VIBRATION SIGNALS ANAYLSIS 小波尺度谱在振动信号分析中的应用研究
- Comparison of Wavelet Scalogram and Spectrogram for the Ultrasonic Blood Doppler Flow Signal 超声血流多普勒信号小波尺度图和谱图的比较
- ACOUSTIC EMISSION CHARACTERISTICS OF RUB-IMPACT FOR ROTOR-BEARING SYSTEM BASED ON WAVELET SCALOGRAM 基于小波尺度谱的转子系统碰摩声发射特性
- Applications of Wavelet Decomposition and Reassigned Wavelet Scalogram to Rotor Crack Faults 小波包分析在转子裂纹故障检测中的应用
- reassigned wavelet scalogram 再分配小波尺度图
- Wavelet scalogram 小波尺度图
- The detection is based on the detection of the peaks of scalogram. 通过检测尺度谱图的峰值实现对行波暂态信号的检测。
- A new approach using scalogram of wavelet transform for travelling wave transient signal detection, under noise free condition or noise condition separately, was described. 摘要介绍小波变换定义、性质和时间尺度分析，研究小波变换的尺度谱检测无噪声和有噪声条件下的行波暂态信号的能力。
- Detection of Spikes in Epileptic EEG by Using Wavelet Series. 利用小波级数检测癫痫eeg中的棘波
- In this paper, we give a survey of matrix approach in wavelet t. 本文系统总结了小波分析中的矩阵方法,给出了我们得到的一些相关结果。
- Application of Wavelet Compression Chip in System of Video Control. 小波压缩芯片在视频监控系统中的应用。
- Fundamentals of Image Coding and Wavelet Compressing II. 图像编码基础和小波压缩技术2。
