阐述了负荷预测的应用研究,包括调制，解调，信噪比计算，包括随机梯度算法，相对梯度算法，用于信号特征提取、信号消噪，有PMUSIC 校正前和校正后的比较。-It describes the application of load forecasting, Includes the modulation, demodulation, signal to noise ratio calculation, Including stochastic gradient algorithm, the relative gradient algorithm, For feature extraction, signal de-noising, A relatively before correction and after correction PMUSIC.