基于分段非线性权重值的Pso算法，包括脚本文件和函数文件形式，阐述了负荷预测的应用研究,最终的权值矩阵就是滤波器的系数，微分方程组数值解方法，已调制信号计算其普相关密度，合成孔径雷达（SAR)目标成像仿真。- Based on piecewise nonlinear weight value Pso algorithm, Including scr ipt files and function files in the form, It describes the application of load forecasting, The final weight matrix is ??the filter coefficient, Numerical solution of differential equations method, Modulated signals to calculate its density Pu-related, Synthetic Aperture Radar (SAR) imaging simulation target.