中文说明：在matlab环境中自动识别连通区域的大小,FIR 底通和带通滤波器和IIR 底通和带通滤波器，外文资料里面的源代码，可以得到很精确的幅值、频率、相位估计，用于信号特征提取、信号消噪，包括最小二乘法、SVM、神经网络、1_k近邻法。
English Description：
In Matlab environment automatic identification of size of connected region, at the bottom of the fir pass and band-pass filter and IIR bottom pass and band-pass filter, the source code of the foreign material inside can get very accurate amplitude, frequency and phase estimation, for signal feature extraction, signal denoising, including the least squares method, SVM, neural network, 1 K nearest neighbor method.