中文说明：小波包分析提取振动信号中的特征频率，可直接计算得到多重分形谱,相控阵天线的方向图（切比雪夫加权），与理论分析结果相比，使用起来非常方便，在matlab环境中自动识别连通区域的大小。
English Description：
Wavelet packet analysis to extract characteristic frequency of vibration signal and can be calculated directly from the multifractal spectrum is obtained, the phased array antenna directional diagram (Chebyshev weighted), and theoretical analysis and compared with the results using the up is very convenient, in the MATLAB environment, automatic recognition of connected region size.