中文说明：计算十字叉丝的在不同距离的衍射图像,该函数用来计算任意函数的一阶偏导数(数值方法),单径或多径瑞利衰落信道仿真，插值与拟合的matlab实现，遗传算法无功优化，外文资料里面的源代码。
English Description：
Calculation of cross wire diffraction images at different distances, the function used to calculate any function of the first order partial derivative (numerical method), single path or multipath Rayleigh fading channel simulation, interpolation and fitting MATLAB, genetic algorithm for reactive power optimization, foreign material inside the source code.