Page 448 - Analog and Digital Filter Design
P. 448
Answers 44
Chapter 15
15.1 Delay, sum and multiply.
15.2 An analog filter has a response defined in the frequency domain. A
digital filter has a response defined in the time domain, which is an
Inverse Fourier transform of the required frequency response.
15.3 An IIR filter has a feedback path from its output back to its input
Ths type of filter requires fewer components to produce a particular
frequency response, compared to a FIR filter, but it produces a
nonlinear phase response, which can be a disadvantage.
