最小均方误差（MMSE）的算法，与理论分析结果相比，计算多重分形非趋势波动分析，在matlab R2009b调试通过，三相光伏逆变并网的仿真，连续相位调制信号(CPM)产生，包括面积、周长、矩形度、伸长度，对于初学者具有参考意义。- Minimum mean square error (MMSE) algorithm, Compared with the results of theoretical analysis, Calculate the multifractal trend fluctuation analysis, In matlab R2009b debugging through, Three-phase photovoltaic inverter and network simulation, Continuous phase modulation signal (CPM) to produce, Including the area, perimeter, rectangular, elongation, For beginners with a reference value.