画出下述情况下均匀线阵方向图

1）计算来波方向为0度方向图

2）画出来波方向为45度时的方向图

3）画出来波方向为0度，幅度取分贝数：20log***（单位为dB）时的方向图

4）画出来波方向为0度，随着阵元数的增加，当N=16，N=32时的方向图，并对方向图的变化情况进行说明-Draw the following conditions uniform linear array



1) calculation of wave direction is 0 degrees direction diagram



2) draw out the wave direction is 45 degrees direction map



3) draw out the wave direction is 0 degrees, and amplitude decibels: 20log*** (unit dB) when the direction of FIG.



4) draw out the wave direction is 0 degrees, with the increase of the number of array elements, when N=16, N=32 pattern, and the change of direction is described