本代码实现了基于卡方分布(nakagami 分布)的恒虚警检测(CFAR)，通过在查找表的形式，实现参数估计和阈值估计，完成对目标的检测。-The code based on the chi-square distribution (nakagami distribution) of the CFAR (CFAR), through the form of a lookup table to achieve the threshold parameter estimates and estima

用NCEXP算法计算T2，包括非中心卡分布，以及固定sigma时的代码-Code with NCEXP algorithm T2, including noncentral chi distribution, and when fixed sigma