scalogram

scalogram

1. The wavelet analysis, especially waveletscalogram and reassignment scalogram, is utilized to analyze the time-frequencycharacteristic and propagation characteristic of the rubbing AE.

主要采用小波分析方法对碰摩声发射的时频特性及传播特性进行分析,着重研究了小波尺度谱和再分配尺度谱在碰摩声发射时频特性分析中应用。

2. 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

3. 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。

4. reassigned wavelet scalogram

再分配小波尺度图

5. 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。

6. 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。

7. Wavelet Scalogram and Application for Geophysical Well

地球物理测井序列的小波波谱方法

8. Bearing Transient Feature Detection and Extraction Based on Reassigned Scalogram

基于小波尺度图重分配的轴承瞬态特征检测与提取

9. 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

10. 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

11. An application of wavelet packet scalogram in fault detection

小波包尺度图在故障检测中的应用

12. Wavelet scalogram

小波尺度图

13. 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。

14. wavelets scalogram

小波尺度谱

15. 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

16. Keywords Scalogram;Paleoclimate;Para-sequence;Well Logging;Periodgram;

小波波谱;古气候;层序地层分析;测井曲线;周期分析;

17. Research on Continuous Wavelet Transform Scalogram in Fault Diagnosis System of Steam Turbine Sets

小波灰度图在汽轮机组远程诊断专家系统中的应用研究

18. Detection of Travelling Wave Transient Signal Using Wavelet Transformation Scalogram

应用小波变换尺度谱检测行波暂态信号

19. 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。

20. 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。

21. This research starts from related literature and paper.According those theories, establish structure and assumption of this research, and use suitable scalogram as the study tool.

本研究从相关的文献探讨开始著手，再根据其理论基础建立本研究之架构与假设，并选用适当的量表为研究工具；

22. 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；

23. 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

24. 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。

25. scalogram analysis

量图分析