Configurable parallel arithmetic structure for recursive digital filtering

摘要: An FDM/TDM transmultiplexer uses sampling rate multiplication to increase the for time division multiplexed (TDM) frequency (FDM) conversion and decrease FDM TDM conversion. The filters are realized digitally in order exploit computational advantage of Fast Fourier Transform (FFT) algorithm, channel filtering is implemented by a single time-shared sixth-order elliptic digital recursive filter. A novel FFT processor filter disclosed which may be used system.