This dissertation examines the wavelet theory and its application on signal preprocessing and data feature extraction during fault diagnosis based on its recent ten years development.
本论文基于近十年发展起来的小波变换理论，针对故障诊断中数据预处理、故障数据特征提取两方面，进行了小波理论在其中的应用研究，在实际应用中取得较好的效果。
参考来源 - 小波理论在导弹故障诊断中的应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
This paper aims to consummate the wavelet theory, combining with its excellent time and frequency feature , present some new algorithms and use to image recognition.
旨在完善小波理论的同时，结合小波的时频域特性设计出新的应用算法，将其用于图像识别。
In the case that spacial continuity can be proved, but not clearly enough to provide fracture information, post stack processing based on the wavelet theory will be necessary.
如果这种现象在空间具有连续性，但还不能清楚反映断点信息，则只能依据小波理论对资料进行叠后的进一步处理。
This paper derives an energy attenuation formula of seismic waves in the wavelet-scale domain from the wavelet theory and seismic wave propagation equation in anelastic medium.
本文从小波理论出发，结合地震波在黏弹性介质中的传播方程，推导出小波尺度域地震波能量衰减公式。
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