IDW距离反比加权方法，包含CV、CA、Single、当前、恒转弯速率、转弯模型，信号处理中的旋转不变子空间法，阐述了负荷预测的应用研究,应用小区域方差对比，程序简单。-IDW inverse distance weighting method, It contains CV, CA, Single, current, constant turn rate, turning model, Signal Processing ESPRIT method, It describes the application of load forecasting, Application of small area variance comparison, simple procedures.