Filtri in virgola fissa
È possibile modellare gli algoritmi di filtraggio dell'elaborazione del segnale in virgola fissa e analizzare gli effetti della quantizzazione sul comportamento e sulle prestazioni del sistema utilizzando le funzionalità DSP System Toolbox™ e Fixed-Point Designer™. Per un elenco dei System object DSP System Toolbox che supportano le operazioni in virgola fissa, vedere System Objects in DSP System Toolbox that Support Fixed-Point Design. Per un elenco dei blocchi di DSP System Toolbox che supportano le operazioni in virgola fissa, utilizzare la funzione showsignalblockdatatypetable
.
Oggetti
Funzioni
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 |
Blocchi
Argomenti
- 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.