单径或多径瑞利衰落信道仿真，最大似然（ML）准则和最大后验概率（MAP）准则，构成不同频率的调制信号，粒子图像分割及匹配均为自行编制的子例程，使用起来非常方便，考虑雨衰 阴影 和多径影响。- Single path or multipath Rayleigh fading channel simulation, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion, Constituting the modulated signals of different frequencies, Particle image segmentation and matching subroutines themselves are prepared, Very convenient to use, Consider shadow rain attenuation and multipath effect.