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Difference between revisions of "NVGate 2021: Release note"
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NVGate 2021: Release note (view source)
Revision as of 17:08, 27 November 2020
, 17:08, 27 November 2020→New prototype filters
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The Butterworth filter has flat response in both the pass band and stop band, but its transition band is wide. | The Butterworth filter has flat response in both the pass band and stop band, but its transition band is wide. | ||
The Chebyshev type | The Chebyshev type I (band-pass ripple filter) has the steepest roll-off among the three filters, and its response in the stop band is flat. However, it has ripples in the pass band. | ||
The Chebyshev type | The Chebyshev type II (stop-band ripple) filter has flat response in the pass band, but it has ripples in the stop band. Its transition band is narrower than the Butterworth filter, but wider than the Chebyshev type I. | ||
Below is an example showing these three filters with the same filter order. | Below is an example showing these three filters with the same filter order. | ||
[[File: | [[File:filters_3.png|600px]] | ||
==Increased filter order== | ==Increased filter order== | ||