So Wavelet packet is always used in the extract the feature of fault.
所以小波包对于故障特征提取有着广泛的应用。
参考来源 - 基于小波神经网络的异步电动机振动故障诊断研究The results show that wavelet packet has better filtering effect.
仿真结果表明，小波包分析具有较好的滤波效果。
参考来源 - 基于小波包的木材含水率在线检测—《计算机应用研究》—2009年第3期—龙源期刊网·2,447,543篇论文数据，部分数据来源于NoteExpress
The theory of wavelet packet is more complex than the analysis of wavelet, but its means of analysis is more flexible, and has more accurate partial analysis ability.
小波包理论比小波分析更为复杂，但其分析手段更为灵活，具有更为精确的局部分析能力。
The result shows that the filtering algorithm based on wavelet packet analysis can decrease the random error and improve the measuring precision of laser gyro effectively.
结果表明基于小波包分析的滤波方法能有效减小随机误差，提高激光陀螺的测量精度。
Then, the damage location can be identified by the change of the wavelet packet component energy.
通过各频段能量的变化进行损伤位置的识别。
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