本程序为地球直角坐标转球面做的程序，本程序考虑到了不同的地球模型，采用了对应于不同模型的参数-This procedure turn spherical Earth Cartesian coordinate the program, the program taking into account the different Earth model using the parameters corresponding to the different models

用球坐标搜索，绘制PSS并联机构的对称工作空间-Using spherical coordinate search, draw PSS parallel mechanism symmetrical workspace

对线阵、圆环阵、柱阵、球面体进行波束形成仿真，先进行阵元分布绘制，利用笛卡尔坐标系，进而任意阵型常规波束形成，绘制二维、三维波束图、方位谱图(For beam forming simulation of linear array, circular array, column array and spherical body, we first draw the array element distribution, and use Descartes coordinate system, an

fdtdq.m 球面坐标系的fdtd实现程序 fdtdgpu.m 使用gpu并行的fdtd实现程序(The FDTD realization program of fdtdq.m spherical coordinate system Fdtdgpu.m uses a GPU Parallel FDTD implementation program)