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Filteranalyse

Visualisieren Sie die Frequenzantwort von Filtern, überprüfen Sie die Eigenschaften und Merkmale von Filtern

DSP System Toolbox™ bietet Ihnen mehrere Filteranalyse-Funktionen, um die Filterdesign-Spezifikationen zu validieren. Mit diesen Funktionen können Sie verschiedene Aspekte der Filterantwort wie Stärke, Phase, Impuls und Schritt visualisieren. Die Filtereigenschaften können Sie zudem mit Funktionen wie coeffs, cost und info ermitteln und Filtermerkmale mit Funktionen wie firtype, isfir und isstable verifizieren. Eine vollständige Liste aller Analysefunktionen von DSP System Toolbox finden Sie unter Analysis Functions for Filter System Objects.

Sie können zudem die Stärke und die Phasenantwort zeitvarianter digitaler Filter mit dem dsp.DynamicFilterVisualizer-Objekt in MATLAB® und dem Filter Visualizer-Block in Simulink® visualisieren. Weitere Informationen finden Sie unter Configure Filter Visualizer.

Apps

Filter AnalyzerView, analyze, and compare filters (Seit R2024a)

Funktionen

alle erweitern

dsp.DynamicFilterVisualizerDisplay time-varying magnitude and phase response of digital filters
filterDesignerOpen Filter Designer app
fvtool(To be removed) Visualize frequency response of DSP filters
freqrespestFrequency response estimate via filtering
freqrespoptsCreate an options object for frequency response estimate
freqzFrequency response of discrete-time filter System object
freqzmrCompute DTFT approximation of impulse response of multirate or single-rate filter (Seit R2024a)
grpdelayGroup delay response of discrete-time filter System object
impzImpulse response of discrete-time filter System object
impzlengthLength of impulse response of discrete-time filter System object
measureMeasure frequency response characteristics of filter System object
noisepsdPower spectral density of filter output due to round-off noise
noisepsdoptsCreate an options object for output noise PSD computation
outputDelayDetermine output delay of single-rate or multirate filter (Seit R2022a)
phasedelayPhase delay response of discrete-time filter System object
phasezPhase response of discrete-time filter System object (unwrapped)
stepzStep response of discrete-time filter System object
zerophaseZero-phase response of discrete-time filter System object
zplaneZ-plane zero-pole plot for discrete-time filter System object
coeffsReturns the filter System object coefficients in a structure
costEstimate cost of implementing filter System object
cumsecCumulative second-order section of the biquadratic filter
dispDisplay filter properties and values
filtstates.cicStore CIC filter states
infoInformation about filter System object
orderOrder of discrete-time filter System object
resetReset internal states of System object
ssConvert discrete-time filter System object to state-space representation
tfConvert discrete-time filter System object to transfer function
zpkZero-pole-gain conversion of discrete-time filter System object
firtypeDetermine type (1-4) of linear phase FIR filter System object
isallpassVerify that discrete-time filter System object is allpass
isfirVerify if filter System object is FIR
islinphaseVerify that discrete-time filter System object is linear phase
ismaxphaseVerify that discrete-time filter System object is maximum phase
isminphaseVerify that discrete-time filter System object is minimum phase
isrealVerify that discrete-time filter System object is real
issosVerify if discrete-time System object filter is in second-order sections form
isstableVerify that discrete-time filter System object is stable
scalecheckCheck scaling of biquadratic filter
realizemdlSimulink subsystem block for filter
realizeModelCreate Simulink block equivalent of CIC rate conversion filter objects (Seit R2024a)
allpass2wdfAllpass to Wave Digital Filter coefficient transformation
normalizefreqSwitch filter specification between normalized frequency and absolute frequency
wdf2allpassWave Digital Filter to allpass coefficient transformation

Objekte

filterAnalyzerAnalyze filters with Filter Analyzer app (Seit R2024a)

Blöcke

Filter VisualizerDisplay magnitude and phase response of time-varying digital filters (Seit R2023a)

Themen