Question

What is the difference between a band reject filter and a notch filter?

Answer 1

In signal processing, a band-stop filter or band-rejection filter is a filter that passes most frequencies unaltered, but attenuates those in a specific range to very low levels. It is the opposite of a band-pass filter. A notch filter is a band-stop filter with a narrow stopband (high Q factor).

Answer 2

on what parameters Q relies upon?
and is it true that a notch filter is a limiting case of band stop filter?

Answer 3

\[Q=\omega0/\beta \]

Answer 4

where \[\omega0\] is the central frequency

Answer 5

and beta is the band width

Answer 6

band reject filter as the name suggests .. rejects a band
and notch filter is used to select a particular frequency and nt a band