/sci/ - Science & Math

>>14629605
for an arbitrary real-valued impulse response [math]h[/math], consider the (discrete time) LTI system with impulse response [math]h*h_\sigma[/math], convolving [math]h[/math] with [math]h_\sigma[k]=h[-k][/math]. Compute the frequency response of this system and deduce that it applies a zero-phase lag to any input frequency.

why am i too dense to get this ;_;