产生均匀、高斯、椒盐、对数正态、瑞利、指数、厄兰随机噪声-Have a uniform, Gaussian, salt and pepper, Lognormal, Rayleigh, exponential, beijerland random noise

分别产生符合高斯分布、指数分布、GGD分布的随机数。-Generate Gaussian distribution, exponential distribution, the GGD distribution of random numbers.

随机变量的产生，其中指数分布的和高斯分布的随机变量采用了变换法，分析它的自相关函数和功率谱密度，-The selection of random variables, in which exponential distribution and Gaussian distribution of random variables using the transformation method, analysis of its autocorrelation function and power sp