应用小区域方差对比，程序简单，毕业设计有用，包含位置式PID算法、积分分离式PID，对HARQ系统的吞吐量分析，部分实现了追踪测速迭代松弛算法，包括调制，解调，信噪比计算。- Application of small area variance comparison, simple procedures, Graduation useful It contains positional PID algorithm, integral separate PID, HARQ throughput analysis of the system, Partially achieved tracking speed iterative relaxation algorithm, Includes the modulation, demodulation, signal to noise ratio calculation.