isfir
Determine if digital filter has finite impulse response
Syntax
Description
Examples
FIR and IIR Digital Filters
Use designfilt
to design FIR and IIR versions of a sixth-order highpass filter. Specify a normalized stopband frequency of rad/sample and a normalized passband frequency of rad/sample. Verify that each filter is of the correct class.
fir = designfilt("highpassfir",FilterOrder=6, ... StopbandFrequency=0.3,PassbandFrequency=0.6); isfirFIR = isfir(fir)
isfirFIR = logical
1
iir = designfilt("highpassiir",FilterOrder=6, ... StopbandFrequency=0.3,PassbandFrequency=0.6); isfirIIR = isfir(iir)
isfirIIR = logical
0
Input Arguments
d
— Digital filter
digitalFilter
object
Digital filter, specified as a digitalFilter
object. Use designfilt
to generate a digital filter
based on frequency-response specifications.
Example: d =
designfilt('lowpassiir','FilterOrder',3,'HalfPowerFrequency',0.5)
specifies a third-order Butterworth filter with normalized 3 dB frequency 0.5π
rad/sample.
Output Arguments
flag
— Filter class identification
logical scalar
Filter class identification, returned as a logical scalar.
Version History
Introduced in R2014a
See Also
designfilt
| digitalFilter
| firtype
| isdouble
| issingle
MATLAB 명령
다음 MATLAB 명령에 해당하는 링크를 클릭했습니다.
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