一个OFDM 基带信号，采用256点IFFT,子载波采用8PSK映射,加保护段，调制信号采用“削顶”方法降低PAPR,FIR 半带滤波，最后输出时域信号/频域响应。包含各级的视频域比较-An OFDM baseband signal, using the 256-point IFFT, the sub-carrier using 8PSK mapping, plus the protection section, the modulated signal " cut top"

该程序实现了运用VHDL实现数字音频滤波，同时在FIR 滤波过程中减少了加法器和乘法器使用数量，大大减小了内存-The program implements the use of VHDL digital audio filtering, while in the FIR filtering process to reduce the number of adders and multipliers used, which greatly reduces the memory