Comparison of Butterworth and Bessel Responses.
The Responses of Butterworth and Bessel Filters are
compared in the applet below. The magnitude is shown
by red, green, cyan and pink lines and the phase delay
by orange and yellow lines.
The smoother phase delay of the Bessel response is accompanied
by a reduced attenuation compared with the Butterworth response.
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COPYRIGHT © 2005 Cuthbert Nyack.