Amplitude Response
Definition. The amplitude responseof an LTI filter is defined as the magnitude (or modulus) of the (complex) filter frequency response
, i.e.,


![$ \omega T \in[-\pi,\pi]$](http://www.dsprelated.com/josimages_new/filters/img334.png)
Next Section:
Phase Response
Previous Section:
Frequency Response
Definition. The amplitude responseof an LTI filter is defined as the magnitude (or modulus) of the (complex) filter frequency response
, i.e.,