本代码是用于LED二次设计的，可以形成环形照明模式的自由曲面设计，得到所要的点云-This code is used for LED secondary design, can form annular illumination model of free surface design, get the point cloud

Free-Space White-LED Communication: SISO and MIMO Channel Modeling-Execute optical_wireless.m to start. N.B. The programs were done in a hurry and may not be correct. Please check through the maths.