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برق و الکترونیک::
فیلتر باتروورث
Figure 3.16 shows the output of a 2nd order Butterworth filter for a Miller (a.) respectively a Manchester (b.) encoded signal for a SNR level of 1dB.
The Butterworth filter [152] has as main advantage the fact that it has no ripples in the pass band.
Compared with the Elliptic or the Chebyshev filters, the Butterworth filters also have a better phase response but have as disadvantage a slower roll-off.
The next investigation aims to confirm the suitability of the Butterworth filters by comparing it with the Elliptic and the Chebyshev filters.
The simulation results confirmed that in the given context, the Butterworth filter exhibits better performances.
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