粒子图像分割及匹配均为自行编制的子例程，单径或多径瑞利衰落信道仿真，对于初学matlab的同学会有帮助，对HARQ系统的吞吐量分析，到达过程是的泊松过程。- Particle image segmentation and matching subroutines themselves are prepared, Single path or multipath Rayleigh fading channel simulation, Matlab for beginner students will help, HARQ throughput analysis of the system, Arrival process is a Poisson process.