中文说明：
进行逐步线性回归，阐述了负荷预测的应用研究,通过虚拟阵元进行DOA估计，最小均方误差（MMSE）的算法，添加噪声处理，相控阵天线的方向图（切比雪夫加权），直线阵采用切比学夫加权控制主旁瓣比。
English Description：
Stepwise linear regression is carried out, and the application research of load forecasting is expounded. DOA estimation is carried out by virtual array element, minimum mean square error (MMSE) algorithm is used, noise processing is added, the pattern of phased array antenna is weighted by Chebyshev, and the main side lobe ratio of linear array is controlled by Chebyshev weighting.