The polyphase FFT implementation is then Polyphase implementation of the MFB with FFT,L=N=R Special Case 2:L=2N=2R Here the polyphase components are 2-points long.Since L =2R,time aliasing occurs when the N-point DFT is performed through FFT. hin-p hop(n]ho[-pl6(n]ho[-p-N]6[n +1] cn] IN ho[0]6[n]ho[-N]6[n+1] voln] IN ho[-16nl+ho-N-1]6n+1] viin] 2 N-point DFT ho[-216(n]ho[-N-216[n+1] +2[nl ↓N hol-N+1]8[n+ho[-2N+1]6n+1] →UN-[n windowing and time-aliasing Polyphase implementation of the MFB with FFT,L=2N =2R 6FFT implementation is then Polyphase implementation of the MFB with FFT, L = N = R Case 2: L = 2N = 2R polyphase components are 2-points long. Since L = 2R, time aliasing occurs when the N-point DFT is performed through FFT. The polyphase Special Here the Polyphase implementation of the MFB with FFT, L = 2N = 2R 6