主要为数据分析和统计，一种噪声辅助数据分析方法,添加噪声处理，三相光伏逆变并网的仿真，最大似然（ML）准则和最大后验概率（MAP）准则，可以得到很精确的幅值、频率、相位估计。- Mainly for data analysis and statistics, A noise auxiliary data analysis method, Add noise processing, Three-phase photovoltaic inverter and network simulation, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion, You can get a very accurate amplitude, frequency, phase estimation.