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固定小数点フィルター

固定小数点フィルターの設計。

System object

すべて展開する

dsp.AllpoleFilterIIR Filter with no zeros
dsp.BiquadFilter双二次構造を使用した IIR フィルター
dsp.DifferentiatorDirect form FIR fullband differentiator filter
dsp.FIRFilterStatic or time-varying FIR filter
dsp.HDLFIRFilterFinite impulse response filter—optimized for HDL code generation
dsp.HighpassFilterFIR or IIR highpass filter
dsp.IIRFilter無限インパルス応答 (IIR) フィルター
dsp.LowpassFilterFIR or IIR lowpass filter
dsp.CICCompensationDecimatorCompensate for CIC decimation filter using FIR decimator
dsp.CICCompensationInterpolatorCompensate for CIC interpolation filter using FIR interpolator
dsp.CICDecimatorカスケード接続積分器櫛形 (CIC) フィルターを使用して信号を間引く
dsp.CICInterpolatorInterpolate signal using cascaded integrator-comb filter
dsp.DigitalDownConverterデジタル信号を中間周波数 (IF) 帯域からベースバンドに変換して間引きする
dsp.DigitalUpConverterInterpolate digital signal and translate it from baseband to Intermediate Frequency (IF) band
dsp.FarrowRateConverterPolynomial sample rate converter with arbitrary conversion factor
dsp.FIRDecimatorPolyphase FIR decimator
dsp.FIRHalfbandDecimatorHalfband decimator
dsp.FIRHalfbandInterpolatorHalfband interpolator
dsp.FIRInterpolatorPolyphase FIR interpolator
dsp.FIRRateConverterSample rate converter
dsp.HDLFIRRateConverterUpsample, filter, and downsample—optimized for HDL code generation
dsp.SubbandAnalysisFilterDecompose signal into high-frequency and low-frequency subbands
dsp.SubbandSynthesisFilterReconstruct signal from high-frequency and low-frequency subbands
dsp.LMSFilterLMS 適応フィルターの出力、誤差および重みの計算

関数

autoscaleAutomatic dynamic range scaling
denormalizeUndo filter coefficient and gain changes caused by normalize
freqrespestFrequency response estimate via filtering
freqrespoptsOptions for filter frequency response analysis
freqzFrequency response of filter
impzImpulse response of discrete-time filter System object
isstableDetermine whether filter is stable
limitcycleResponse of single-rate, fixed-point IIR filter
noisepsdPower spectral density of filter output due to roundoff noise
noisepsdoptsOptions for running filter output noise PSD
normalizeフィルター分子係数またはフィードフォーワード係数の正規化
reffilterReference filter for fixed-point or single-precision filter
reorderRearrange sections in SOS filter
scaleScale second-order sections of dsp.BiquadFilter System object
set2intConfigure filter for integer filtering
specifyallFully specify fixed-point filter System object settings
zplaneZ-plane zero-pole plot for discrete-time filter System object

ブロック

すべて展開する

Allpole FilterModel allpole filters
Biquad Filter双二次 IIR (SOS) フィルターのモデル化
Differentiator FilterDirect form FIR fullband differentiator filter
Discrete Filter無限インパルス応答 (IIR) フィルターのモデル化
Discrete FIR FilterModel FIR filters
Discrete FIR Filter HDL OptimizedFinite impulse response filter—optimized for HDL code generation
Highpass FilterDesign FIR or IIR highpass filter
Lowpass FilterFIR または IIR ローパス フィルターの設計
CIC Compensation DecimatorCompensate for CIC filter using FIR decimator
CIC Compensation InterpolatorCompensate for CIC filter using FIR interpolator
CIC DecimationDecimate signal using cascaded integrator-comb filter
CIC InterpolationInterpolate signal using cascaded integrator-comb filter
Digital Down-ConverterTranslate digital signal from Intermediate Frequency (IF) band to baseband and decimate it
Digital Up-ConverterInterpolate digital signal and translate it from baseband to Intermediate Frequency (IF) band
Farrow Rate ConverterPolynomial sample-rate converter with arbitrary conversion factor
FIR DecimationFilter and downsample input signals
FIR Halfband DecimatorDecimate signal using polyphase FIR halfband filter
FIR Halfband InterpolatorInterpolate signal using polyphase FIR half band filter
FIR InterpolationUpsample and filter input signals
FIR Rate ConversionUpsample, filter, and downsample input signals
FIR Rate Conversion HDL OptimizedUpsample, filter, and downsample input signals—optimized for HDL code generation
Two-Channel Analysis Subband FilterDecompose signal into high-frequency and low-frequency subbands
Two-Channel Analysis Subband FilterDecompose signal into high-frequency and low-frequency subbands
LMS FilterLMS 適応アルゴリズムを使用した出力、誤差および重みの計算
Filter Realization WizardConstruct filter realizations using digital filter blocks or Sum, Gain, and Delay blocks

トピック

Fixed-Point Precision Rules for Avoiding Overflow in FIR Filters

Precision Rules for Avoiding Overflow in FIR Filters

Create an FIR Filter Using Integer Coefficients

Learn how to create an FIR filter using integer coefficients.

Use Filter Designer with DSP System Toolbox Software

Presents a detailed reference covering the fixed-point, multirate, and scaling pages of the Filter Designer App

注目の例