Festkommafilter
Sie können die Funktionen von DSP System Toolbox™ und Fixed-Point Designer™ verwenden, um Festkomma-Signalverarbeitungs-Filteralgorithmen zu modellieren und die Effekte einer Quantisierung auf das Systemverhalten und die Systemleistung zu analysieren. Eine Liste der DSP System Toolbox System objects, die Festkommaoperationen unterstützen, finden Sie unter System Objects in DSP System Toolbox that Support Fixed-Point Design. Eine Liste der DSP System Toolbox-Blöcke, die Festkommaoperationen unterstützen, finden Sie mithilfe der showsignalblockdatatypetable
-Funktion.
Objekte
Funktionen
freqrespest | Frequency response estimate via filtering |
freqrespopts | Create an options object for frequency response estimate |
freqz | Frequency response of discrete-time filter System object |
impz | Impulse response of discrete-time filter System object |
isstable | Verify that discrete-time filter System object is stable |
noisepsd | Power spectral density of filter output due to round-off noise |
noisepsdopts | Create an options object for output noise PSD computation |
reorder | Reorder second-order sections of biquadratic filter System object |
scale | Scale second-order sections |
specifyall | Fully specify fixed-point filter System object settings |
zplane | Z-plane zero-pole plot for discrete-time filter System object |
Blöcke
Themen
- 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.
- Fixed-Point Filter Design in MATLAB
Design filters for use with fixed-point input.