随即分布数据产生的程序，产生均匀分布、瑞利分布、标准高斯分布、莱斯分布的随机变量-Then the distribution of data generation process, resulting in uniform distribution, Rayleigh distribution, the standard Gaussian distribution, Rice distribution of the random variable

rand_gen.c a random source (random number generator). -rand_gen.c a random source (random number generator).