成形滤波可以在调制后对调制波以带通滤波方式完成，也可以在调制前对基带以低通滤波方式完成，两者的效果是相同的。在现代全数字调制解调器中，成形滤波器大都采用数字滤波器来实现。由于对基带信号进行数字滤波更为方便，因此成形滤波普遍采用基带数字滤波方案。-Shaping filter can be modulated by the modulation wave band-pass filtering is accomplished, it can before the modulation baseba

It contains positional PID algorithm, integral separate PID, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, On neural network control. Continuous phase modulation signal (CPM) to produce, Constituting the modulated si