MATLAB SIGNAL PROCESSING TOOLBOX 6 Bedienungsanleitung PDF herunterladen (Seite 33)

Design a Filter Using fdesign

3-5

Design Methods for class

fdesign.bandpass (Fst1,Fp1,Fp2,Fst2,Ast1,Ap,Ast2):

butter

cheby1

cheby2

ellip

equiripple

kaiserwin

After choosing a design method use, you can evaluate the following at the MATLAB

prompt (this example assumes you've chosen 'equiripple'):

>> BandPassFilt = design(BandPassSpecObj, 'equiripple')

BandPassFilt =

FilterStructure: 'Direct-Form FIR'

Arithmetic: 'double'

Numerator: [1x44 double]

PersistentMemory: false

If you have the DSP System Toolbox installed, you can also design your filter with

a filter System object™. To create a filter System object with the same specification

object BandPassSpecObj, you can execute the commands

>> designmethods(BandPassSpecObj,...

'SystemObject',true)

Design Methods that support System objects for class

fdesign.bandpass (Fst1,Fp1,Fp2,Fst2,Ast1,Ap,Ast2):

butter

cheby1

cheby2

ellip

equiripple

kaiserwin

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