| Single-rate and
Multirate Analysis |
fvtool | Filter visualization tool |
info | Filter information |
freqz | Frequency response of a discrete-time
filter |
phasez | Phase response of a discrete-time
filter |
zerophase | Zero-phase response of a discrete-time
filter |
grpdelay | Group delay of a discrete-time filter |
phasedelay | Phase delay of a discrete-time filter |
impz | Impulse response of a discrete-time
filter |
impzlength | Impulse response length |
stepz | Step response of a discrete-time
filter |
zplane | Pole/Zero plot |
cost | Cost estimate |
measure | Measure filter response |
order | Filter order |
firtype | Determine the type (1–4) of a linear phase
FIR filter |
coeffs | Return filter coefficients |
| Multirate
Analysis |
polyphase | Polyphase decomposition of multirate
filters |
gain | Gain of a Cascaded Integrator-Comb (CIC)
filter |
| Second-order
Sections |
scale | Scale second-order sections |
scalecheck | Check scale of second-order sections |
scaleopts | Create options object for sos scaling |
cumsec | Vector of cumulative second-order section
filters |
reorder | Reorder second-order sections |
sos | Convert IIR filter to Biquad filter |
| Code
Generation |
realizemdl | Filter realization diagram |
| Fixed-point
(supported by FIRFilter, IIRFilter, AllpoleFilter,
and BiquadFilter only) |
noisepsd | Power spectral density of filter output due
to roundoff noise |
noisepsdopts | Create options object for noisepsd
computation |
freqrespest | Frequency response estimate via
filtering |
freqrespopts | Create options object for frequency response
estimate |
| Other |
isallpass | True for allpass discrete-time filter |
islinphase | True for linear discrete-time filter |
ismaxphase | True if maximum phase |
isminphase | True if minimum phase |
isreal | True for discrete-time filter with real
coefficients |
isstable | True if the filter is stable |
isfir | True if the filter is FIR |
issos | True if filter is in second order sections
form |
specifyall | Specify all fixed-point properties |