Butterworth Filter - Comparison With Other Linear Filters

Comparison With Other Linear Filters

Here is an image showing the gain of a discrete-time Butterworth filter next to other common filter types. All of these filters are fifth-order.

The Butterworth filter rolls off more slowly around the cutoff frequency than the Chebyshev filter or the Elliptic filter, but without ripple.

Read more about this topic:  Butterworth Filter

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