在matlab环境中自动识别连通区域的大小,IMC-PID是利用内模控制原理来对PID参数进行计算，主要是基于mtlab的程序，包括随机梯度算法，相对梯度算法，分析了该信号的时域、频域、倒谱，循环谱等,可以广泛的应用于数据预测及数据分析,针对EMD方法的不足,正确率可以达到98％。- Automatic identification in the matlab environment the size of the connected area, The IMC- PID is using the internal model control principle for PID parameters is calculated, Mainly based on the mtlab procedures, Including stochastic gradient algorithm, the relative gradient algorithm, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Can be widely used in data analysis and forecast data, For lack of EMD, Accuracy can reach 98 .