FIR 底通和带通滤波器和IIR 底通和带通滤波器，仿真图是速度、距离、幅度三维图像，对HARQ系统的吞吐量分析，阐述了负荷预测的应用研究,研究生时的现代信号处理的作业，基于SVPWM的三电平逆变的matlab仿真。- Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, FIG simulation speed, distance, amplitude three-dimensional image, HARQ throughput analysis of the system, It describes the application of load forecasting, Modern signal processing jobs when the graduate, Based on SVPWM three-level inverter matlab simulation.