在matlab环境中自动识别连通区域的大小,已调制信号计算其普相关密度，matlab程序运行时导入数据文件作为输入参数，代码里有很完整的注释和解释。- Automatic identification in the matlab environment the size of the connected area, Modulated signals to calculate its density Pu-related, Import data files as input parameter