中文说明：由切比雪夫权值矢量及阵元间距画波束方向图：有x输入，计算该方向的值,否则计算所有方向的值，画出方向图-By the weight vector and the array element spacing beam pattern draw: there is x input, calculate the value of the direction, otherwise the value calculated in all directions, draw the direction of graph
English Description：
By the weight vector and the array element spacing beam pattern draw: there is x input, calculate the value of the direction, otherwise the value calculated in all directions, draw the direction of graph