基于kaiser窗的双谱线插值FFT谐波分析，三相光伏逆变并网的仿真，包含特征值与特征向量的提取、训练样本以及最后的识别，解耦，恢复原信号，是学习PCA特征提取的很好的学习资料。- Dual-line interpolation FFT harmonic analysis kaiser windows, Three-phase photovoltaic inverter and network simulation, Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, Decoupling, restore the original signal, Is a good learning materials to learn PCA feature extraction.