Linear-Phase fr Transfer Functions Since the length of the impulse response can be either even or odd, we can define four types oflinear phase FIR transfer functions For an antisymmetric fir filter of odd length, i.e. Neven h[N2]=0 We examine next the each of the 4 cases Copyright C 2001, S K. MitraCopyright © 2001, S. K. Mitra 3 Linear-Phase FIR Transfer Functions • Since the length of the impulse response can be either even or odd, we can define four types of linear-phase FIR transfer functions • For an antisymmetric FIR filter of odd length, i.e., N even h[N/2] = 0 • We examine next the each of the 4 cases