The results of the statistics show that the damping rate of the pulse signal on the frequency domain is augmented distinctively.
由统计结果得出，脉象在频域上的衰减率明显增大。
After the research on the image fusion method based on the frequency domain, this paper proposed an improved multi-focus image fusion method based on morphological wavelet.
本文在对基于频率域的图像融合方法研究的基础上，提出了一种改进的基于形态学小波的多聚焦图像融合方法。
Based on the frequency domain feature, energy eigenvector of frequency domain is presented using wavelet packet analysis method, and the way of best tree is used to choose symptom.
分析了用小波包能量分析方法提取故障信号特征向量的方法，并改进算法解决了小波包分解中的混频现象，根据最佳分解树进行了特征选择。
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