| abs | Absolute value (magnitude) |
| ac2poly | Convert autocorrelation sequence to prediction polynomial |
| ac2rc | Convert autocorrelation sequence to reflection coefficients |
| angle | Phase angle |
| arburg | Autoregressive (AR) all-pole model parameters estimated
using Burg method |
| arcov | Estimate AR model parameters using covariance method |
| armcov | Estimate AR model parameters using modified covariance
method |
| aryule | Estimate autoregressive (AR) all-pole model using Yule-Walker
method |
| barthannwin | Modified Bartlett-Hann window |
| bartlett | Bartlett window |
| besselap | Bessel analog lowpass filter prototype |
| besself | Bessel analog filter design |
| bilinear | Bilinear transformation method for analog-to-digital filter
conversion |
| bitrevorder | Permute data into bit-reversed order |
| blackman | Blackman window |
| blackmanharris | Minimum 4-term Blackman-Harris window |
| bohmanwin | Bohman window |
| buffer | Buffer signal vector into matrix of data frames |
| buttap | Butterworth filter prototype |
| butter | Butterworth filter design |
| buttord | Butterworth filter order and cutoff frequency |
| cceps | Complex cepstral analysis |
| cconv | Modulo-N circular convolution |
| cell2sos | Convert second-order sections cell array to matrix |
| cfirpm | Complex and nonlinear-phase equiripple FIR filter design |
| cheb1ap | Chebyshev Type I analog lowpass filter prototype |
| cheb1ord | Chebyshev Type I filter order |
| cheb2ap | Chebyshev Type II analog lowpass filter prototype |
| cheb2ord | Chebyshev Type II filter order |
| chebwin | Chebyshev window |
| cheby1 | Chebyshev Type I filter design (passband ripple) |
| cheby2 | Chebyshev Type II filter design (stopband ripple) |
| chirp | Swept-frequency cosine |
| convmtx | Convolution matrix |
| corrmtx | Data matrix for autocorrelation matrix estimation |
| cpsd | Cross power spectral density |
| czt | Chirp z-transform |
| db | Convert energy or power measurements to decibels |
| db2mag | Convert decibels (dB) to magnitude |
| db2pow | Convert decibels (dB) to power |
| dct | Discrete cosine transform (DCT) |
| decimate | Decimation — decrease sampling rate |
| demod | Demodulation for communications simulation |
| design | Apply design method to filter specification object |
| designmethods | Methods available for designing filter from specification
object |
| designopts | Valid input arguments and values for specification object
and method |
| dfilt | Discrete-time filter |
| dfilt.cascade | Cascade of discrete-time filters |
| dfilt.delay | Delay filter |
| dfilt.df1 | Discrete-time, direct-form I filter |
| dfilt.df1sos | Discrete-time, second-order section, direct-form I filter |
| dfilt.df1t | Discrete-time, direct-form I transposed filter |
| dfilt.df1tsos | Discrete-time, second-order section, direct-form I transposed
filter |
| dfilt.df2 | Discrete-time, direct-form II filter |
| dfilt.df2sos | Discrete-time, second-order section, direct-form II filter |
| dfilt.df2t | Discrete-time, direct-form II transposed filter |
| dfilt.df2tsos | Discrete-time, second-order section, direct-form II transposed
filter |
| dfilt.dfasymfir | Discrete-time, direct-form antisymmetric FIR filter |
| dfilt.dffir | Discrete-time, direct-form, FIR filter |
| dfilt.dffirt | Discrete-time, direct-form FIR transposed filter |
| dfilt.dfsymfir | Discrete-time, direct-form symmetric FIR filter |
| dfilt.fftfir | Discrete-time, overlap-add, FIR filter |
| dfilt.latticeallpass | Discrete-time, lattice allpass filter |
| dfilt.latticear | Discrete-time, lattice, autoregressive filter |
| dfilt.latticearma | Discrete-time, lattice, autoregressive, moving-average
filter |
| dfilt.latticemamax | Discrete-time, lattice, moving-average filter |
| dfilt.latticemamin | Discrete-time, lattice, moving-average filter |
| dfilt.parallel | Discrete-time, parallel structure filter |
| dfilt.scalar | Discrete-time, scalar filter |
| dfilt.statespace | Discrete-time, state-space filter |
| dftmtx | Discrete Fourier transform matrix |
| digitrevorder | Permute input into digit-reversed order |
| diric | Dirichlet or periodic sinc function |
| downsample | Decrease sampling rate by integer factor |
| dpss | Discrete prolate spheroidal (Slepian) sequences |
| dpssclear | Remove discrete prolate spheroidal sequences from database |
| dpssdir | Discrete prolate spheroidal sequences database directory |
| dpssload | Load discrete prolate spheroidal sequences from database |
| dpsssave | Discrete prolate spheroidal or Slepian sequence database |
| dspdata | DSP data parameter information |
| dspdata.msspectrum | Mean-square (power) spectrum |
| dspdata.psd | Power spectral density |
| dspdata.pseudospectrum | Pseudospectrum dspdata object |
| dspfwiz | Open FDATool Realize Model panel to create Simulink filter
block |
| dutycycle | Duty cycle of pulse waveform |
| ellip | Elliptic filter design |
| ellipap | Elliptic analog lowpass filter prototype |
| ellipord | Minimum order for elliptic filters |
| eqtflength | Equalize lengths of transfer function's numerator and
denominator |
| equiripple | Equiripple single-rate FIR filter from specification object |
| falltime | Fall time of negative-going bilevel waveform transitions |
| fdatool | Open Filter Design and Analysis Tool |
| fdesign | Filter specification object |
| fdesign.arbmag | Arbitrary response magnitude filter specification object |
| fdesign.bandpass | Bandpass filter specification object |
| fdesign.bandstop | Bandstop filter specification object |
| fdesign.differentiator | Differentiator filter specification object |
| fdesign.highpass | Highpass filter specification object |
| fdesign.hilbert | Hilbert filter specification object |
| fdesign.lowpass | Lowpass filter specification |
| fdesign.pulseshaping | Pulse-shaping filter specification object |
| fftfilt | FFT-based FIR filtering using overlap-add method |
| filter | Filter data with recursive (IIR) or nonrecursive (FIR)
filter |
| filterbuilder | GUI-based filter design |
| filternorm | 2-norm or infinity-norm of digital filter |
| filtfilt | Zero-phase digital filtering |
| filtic | Initial conditions for transposed direct-form II filter
implementation |
| filtstates | Filter states |
| filtstates.dfiir | IIR direct-form filter states |
| findpeaks | Find local maxima |
| fir1 | Window-based finite impulse response filter design |
| fir2 | Frequency sampling-based finite impulse response filter
design |
| fircls | Constrained least square, FIR multiband filter design |
| fircls1 | Constrained least square, lowpass and highpass, linear
phase, FIR filter design |
| firls | Least square linear-phase FIR filter design |
| firpm | Parks-McClellan optimal FIR filter design |
| firpmord | Parks-McClellan optimal FIR filter order estimation |
| firrcos | Raised cosine FIR filter design |
| flattopwin | Flat Top weighted window |
| freqs | Frequency response of analog filters |
| freqsamp | Real or complex frequency-sampled FIR filter from specification
object |
| freqz | Frequency response of digital filter |
| fvtool | Open Filter Visualization Tool |
| fwht | Fast Walsh–Hadamard transform |
| gauspuls | Gaussian-modulated sinusoidal pulse |
| gaussfir | Gaussian FIR pulse-shaping filter |
| gausswin | Gaussian window |
| generate | |
| sigwin.barthannwin method | Generates modified Bartlett-Hanning window |
| sigwin.bartlett method | Generates Bartlett window |
| sigwin.blackman method | Generates Blackman window |
| sigwin.blackmanharris method | Generates Blackman–Harris window |
| sigwin.bohmanwin method | Generates Bohman window |
| sigwin.chebwin method | Generates Dolph-Chebyshev window |
| sigwin.flattopwin method | Generates flat top window |
| sigwin.gausswin method | Generates Gaussian window |
| sigwin.hamming method | Generates Hamming window |
| sigwin.hann method | Generates Hann window |
| sigwin.kaiser method | Generates Kaiser window |
| sigwin.nuttallwin method | Generates Nuttall defined 4–term Blackman-Harris
window |
| sigwin.parzenwin method | Generate Parzen window |
| sigwin.rectwin method | Generates rectangular window |
| sigwin.taylorwin method | Generates Taylor window |
| sigwin.triang method | Generates triangular window |
| sigwin.tukeywin method | Generates Tukey window |
| gmonopuls | Gaussian monopulse |
| goertzel | Discrete Fourier transform with second-order Goertzel
algorithm |
| grpdelay | Average filter delay (group delay) |
| hamming | Hamming window |
| hann | Hann (Hanning) window |
| hilbert | Discrete-time analytic signal using Hilbert transform |
| icceps | Inverse complex cepstrum |
| idct | Inverse discrete cosine transform |
| ifwht | Inverse Fast Walsh–Hadamard transform |
| impinvar | Impulse invariance method for analog-to-digital filter
conversion |
| impz | Impulse response of digital filter |
| info | |
| sigwin.barthannwin method | Display information about modified Bartlett-Hanning window
object |
| sigwin.bartlett method | Display information about Bartlett window object |
| sigwin.blackman method | Display information about Blackman window object |
| sigwin.blackmanharris method | Display information about Blackman–Harris window
object |
| sigwin.bohmanwin method | Display information about Bohman window object |
| sigwin.chebwin method | Display information about Dolph–Chebyshev window
object |
| sigwin.flattopwin method | Display information about flat top window object |
| sigwin.gausswin method | Display information about Gaussian window object |
| sigwin.hamming method | Display information about Hamming window object |
| sigwin.hann method | Display information about Hann window object |
| sigwin.kaiser method | Display information about Kaiser window object |
| sigwin.nuttallwin method | Display information about Nuttall defined 4–term
Blackman-Harris window object |
| sigwin.parzenwin method | Display information about Parzen window object |
| sigwin.rectwin method | Display information about rectangular window object |
| sigwin.taylorwin method | Display information about Taylor window object |
| sigwin.triang method | Display information about triangular window |
| sigwin.tukeywin method | Display information about Tukey window object |
| interp | Interpolation — increase sampling rate by integer
factor |
| intfilt | Interpolation FIR filter design |
| invfreqs | Identify continuous-time filter parameters from frequency
response data |
| invfreqz | Identify discrete-time filter parameters from frequency
response data |
| is2rc | Convert inverse sine parameters to reflection coefficients |
| kaiser | Kaiser window |
| kaiserord | Kaiser window FIR filter design estimation parameters |
| kaiserwin | Kaiser window filter from specification object |
| lar2rc | Convert log area ratio parameters to reflection coefficients |
| latc2tf | Convert lattice filter parameters to transfer function
form |
| latcfilt | Lattice and lattice-ladder filter implementation |
| levinson | Levinson-Durbin recursion |
| lp2bp | Transform lowpass analog filters to bandpass |
| lp2bs | Transform lowpass analog filters to bandstop |
| lp2hp | Transform lowpass analog filters to highpass |
| lp2lp | Change cutoff frequency for lowpass analog filter |
| lpc | Linear prediction filter coefficients |
| lsf2poly | Convert line spectral frequencies to prediction filter
coefficients |
| mag2db | Convert magnitude to decibels (dB) |
| marcumq | Generalized Marcum Q function |
| maxflat | Generalized digital Butterworth filter design |
| medfilt1 | 1-D median filtering |
| midcross | Mid-reference level crossing for bilevel waveform |
| modulate | Modulation for communications simulation |
| mscohere | Magnitude squared coherence |
| nuttallwin | Nuttall-defined minimum 4-term Blackman-Harris window
|
| overshoot | Overshoot metrics of bilevel waveform transitions |
| parzenwin | Parzen (de la Valle-Poussin) window |
| pburg | PSD using Burg method |
| pcov | PSD using covariance method |
| peak2peak | Maximum-to-minimum difference |
| peak2rms | Peak-magnitude-to-RMS ratio |
| peig | Pseudospectrum using eigenvector method |
| periodogram | PSD using periodogram |
| phasedelay | Phase delay of digital filter |
| phasez | Phase response of digital filter |
| pmcov | PSD using modified covariance method |
| pmtm | PSD using multitaper method (MTM) |
| pmusic | Pseudospectrum using MUSIC algorithm |
| poly2ac | Convert prediction filter polynomial to autocorrelation
sequence |
| poly2lsf | Convert prediction filter coefficients to line spectral
frequencies |
| poly2rc | Convert prediction filter polynomial to reflection coefficients |
| polyscale | Scale roots of polynomial |
| polystab | Stabilize polynomial |
| pow2db | Convert power to decibels (dB) |
| prony | Prony method for filter design |
| pulseperiod | Period of bilevel pulse |
| pulsesep | Separation between bilevel waveform pulses |
| pulsewidth | Bilevel waveform pulse width |
| pulstran | Pulse train |
| pwelch | PSD using Welch's method |
| pyulear | PSD using Yule-Walker AR method |
| rc2ac | Convert reflection coefficients to autocorrelation sequence |
| rc2is | Convert reflection coefficients to inverse sine parameters |
| rc2lar | Convert reflection coefficients to log area ratio parameters |
| rc2poly | Convert reflection coefficients to prediction filter polynomial |
| rceps | Real cepstrum and minimum phase reconstruction |
| realizemdl | Simulink subsystem block for filter |
| rectpuls | Sampled aperiodic rectangle |
| rectwin | Rectangular window |
| resample | Change sampling rate by rational factor |
| residuez | z-transform partial-fraction expansion |
| risetime | Rise time of positive-going bilevel waveform transitions |
| rlevinson | Reverse Levinson-Durbin recursion |
| rms | Root-mean-square level |
| rooteig | Frequency and power content using eigenvector method |
| rootmusic | Root MUSIC algorithm |
| rssq | Root-sum-of-squares level |
| sawtooth | Sawtooth or triangle wave |
| schurrc | Compute reflection coefficients from autocorrelation sequence |
| seqperiod | Compute period of sequence |
| setspecs | Specifications for filter specification object |
| settlingtime | Settling time for bilevel waveform |
| sgolay | Savitzky-Golay filter design |
| sgolayfilt | Savitzky-Golay filtering |
| sigwin | Signal processing window object |
| sigwin.barthannwin | Construct Bartlett-Hanning window object |
| sigwin.bartlett | Construct Bartlett window object |
| sigwin.blackman | Construct Blackman window object |
| sigwin.blackmanharris | Construct Blackman–Harris window object |
| sigwin.bohmanwin | Construct Bohman window object |
| sigwin.chebwin | Construct Dolph-Chebyshev window object |
| sigwin.flattopwin | Construct flat top window object |
| sigwin.gausswin | Construct Gaussian window object |
| sigwin.hamming | Construct Hamming window object |
| sigwin.hann | Construct Hann (Hanning) window object |
| sigwin.kaiser | Construct Kaiser window object |
| sigwin.nuttallwin | Construct Nuttall defined 4–term Blackman-Harris
window object |
| sigwin.parzenwin | Construct Parzen window object |
| sigwin.rectwin | Construct rectangular window object |
| sigwin.taylorwin | Construct Taylor window object |
| sigwin.triang | Construct triangular window object |
| sigwin.tukeywin | Construct Tukey window object |
| sinc | Sinc vector or matrix |
| slewrate | Slew rate of bilevel waveform |
| sos2cell | Convert second-order sections matrix to cell array |
| sos2ss | Convert digital filter second-order section parameters
to state-space form |
| sos2tf | Convert digital filter second-order section data to transfer
function form |
| sos2zp | Convert digital filter second-order section parameters
to zero-pole-gain form |
| sosfilt | Second-order (biquadratic) IIR digital filtering |
| spectrogram | Spectrogram using short-time Fourier transform |
| spectrum | Spectral estimation |
| spectrum.burg | Burg spectrum |
| spectrum.cov | Covariance spectrum |
| spectrum.eigenvector | Eigenvector spectrum |
| spectrum.mcov | Modified covariance spectrum |
| spectrum.mtm | Thomson multitaper spectrum |
| spectrum.music | Multiple signal classification spectrum |
| spectrum.periodogram | Periodogram spectrum |
| spectrum.welch | Welch spectrum |
| spectrum.yulear | Yule-Walker spectrum object |
| sptool | Open interactive digital signal processing tool |
| square | Square wave |
| ss2sos | Convert digital filter state-space parameters to second-order
sections form |
| ss2tf | Convert state-space filter parameters to transfer function
form |
| ss2zp | Convert state-space filter parameters to zero-pole-gain
form |
| statelevels | State-level estimation for bilevel waveform with histogram
method |
| stepz | Step response of digital filter |
| stmcb | Compute linear model using Steiglitz-McBride iteration |
| strips | Strip plot |
| taylorwin | Taylor window |
| tf2latc | Convert transfer function filter parameters to lattice
filter form |
| tf2sos | Convert digital filter transfer function data to second-order
sections form |
| tf2ss | Convert transfer function filter parameters to state-space
form |
| tf2zp | Convert transfer function filter parameters to zero-pole-gain
form |
| tf2zpk | Convert transfer function filter parameters to zero-pole-gain
form |
| tfestimate | Transfer function estimate |
| triang | Triangular window |
| tripuls | Sampled aperiodic triangle |
| tukeywin | Tukey (tapered cosine) window |
| udecode | Decode 2n-level quantized integer
inputs to floating-point outputs |
| uencode | Quantize and encode floating-point inputs to integer outputs |
| undershoot | Undershoot metrics of bilevel waveform transitions |
| upfirdn | Upsample, apply FIR filter, and downsample |
| upsample | Increase sampling rate by integer factor |
| validstructures | Structures for specification object with design method |
| vco | Voltage controlled oscillator |
| window | Window function gateway |
| window (filter design method) | FIR filter using windowed impulse response |
| wintool | Open Window Design and Analysis Tool |
| winwrite | |
| sigwin.barthannwin method | Save Bartlett window object values in ASCII file |
| sigwin.bartlett method | Save Bartlett window object values in ASCII file |
| sigwin.blackman method | Save Blackman window in ASCII file |
| sigwin.blackmanharris method | Save Blackman–Harris window in ASCII file |
| sigwin.bohmanwin method | Save Bohman window object values in ASCII file |
| sigwin.chebwin method | Save Dolph-Chebyshev window object values in ASCII file |
| sigwin.flattopwin method | Save flat top window in ASCII file |
| sigwin.gausswin method | Save Gaussian window in ASCII file |
| sigwin.hamming method | Save Hamming window in ASCII file |
| sigwin.hann method | Save Hann window object values in ASCII file |
| sigwin.kaiser method | Save Kaiser window in ASCII file |
| sigwin.nuttallwin method | Save Nuttall defined 4-term Blackman-Harris window object
values in ASCII file |
| sigwin.parzenwin method | Save Parzen window in ASCII file |
| sigwin.rectwin method | Save rectangular window in ASCII file |
| sigwin.taylorwin method | Save Taylor window object values in ASCII file |
| sigwin.triang method | Save triangular window in ASCII file |
| sigwin.tukeywin method | Save Tukey window in ASCII file |
| wvtool | Open Window Visualization Tool |
| xcorr | Cross-correlation |
| xcorr2 | 2–D cross-correlation |
| xcov | Cross-covariance |
| yulewalk | Recursive digital filter design |
| zerophase | Zero-phase response of digital filter |
| zp2sos | Convert zero-pole-gain filter parameters to second-order
sections form |
| zp2ss | Convert zero-pole-gain filter parameters to state-space
form |
| zp2tf | Convert zero-pole-gain filter parameters to transfer function
form |
| zplane | Zero-pole plot |
Function Reference
