## Documentation Center |

By Category | Alphabetical List

adaptfilt | Adaptive filter |

adaptfilt.adjlms | FIR adaptive filter that uses adjoint LMS algorithm |

adaptfilt.ap | FIR adaptive filter that uses direct matrix inversion |

adaptfilt.apru | FIR adaptive filter that uses recursive matrix updating |

adaptfilt.bap | FIR adaptive filter that uses block affine projection |

adaptfilt.blms | FIR adaptive filter that uses BLMS |

adaptfilt.blmsfft | FIR adaptive filter that uses FFT-based BLMS |

adaptfilt.dlms | FIR adaptive filter that uses delayed LMS |

adaptfilt.fdaf | FIR adaptive filter that uses frequency-domain with bin step size normalization |

adaptfilt.filtxlms | FIR adaptive filter that uses filtered-x LMS |

adaptfilt.ftf | Fast transversal LMS adaptive filter |

adaptfilt.gal | FIR adaptive filter that uses gradient lattice |

adaptfilt.hrls | FIR adaptive filter that uses householder (RLS) |

adaptfilt.hswrls | FIR adaptive filter that uses householder sliding window RLS |

adaptfilt.lms | FIR adaptive filter that uses LMS |

adaptfilt.lsl | Least squares lattice adaptive filter |

adaptfilt.nlms | Normalized least mean squares adaptive filter |

adaptfilt.pbfdaf | Partitioned block frequency-domain FIR adaptive filter |

adaptfilt.pbufdaf | Partitioned block unconstrained frequency-domain adaptive filter |

adaptfilt.qrdlsl | QR-decomposition-based least-squares lattice adaptive filter |

adaptfilt.qrdrls | FIR adaptive filter that uses QR-decomposition-based RLS |

adaptfilt.rls | Recursive least-squares FIR adaptive filter |

adaptfilt.sd | Sign-data FIR adaptive filter |

adaptfilt.se | FIR adaptive filter that uses sign-error algorithm |

adaptfilt.ss | FIR adaptive filter that uses sign-sign algorithm |

adaptfilt.swftf | FIR adaptive filter that uses sliding window fast transversal least squares |

adaptfilt.swrls | FIR adaptive filter that uses window recursive least squares (RLS) |

adaptfilt.tdafdct | Adaptive filter that uses discrete cosine transform |

adaptfilt.tdafdft | Adaptive filter that uses discrete Fourier transform |

adaptfilt.ufdaf | FIR adaptive filter that uses unconstrained frequency-domain with quantized step size normalization |

allpass2wdf | Allpass to Wave Digital Filter coefficient transformation |

allpassbpc2bpc | Allpass filter for complex bandpass transformation |

allpasslp2bp | Allpass filter for lowpass to bandpass transformation |

allpasslp2bpc | Allpass filter for lowpass to complex bandpass transformation |

allpasslp2bs | Allpass filter for lowpass to bandstop transformation |

allpasslp2bsc | Allpass filter for lowpass to complex bandstop transformation |

allpasslp2hp | Allpass filter for lowpass to highpass transformation |

allpasslp2lp | Allpass filter for lowpass to lowpass transformation |

allpasslp2mb | Allpass filter for lowpass to M-band transformation |

allpasslp2mbc | Allpass filter for lowpass to complex M-band transformation |

allpasslp2xc | Allpass filter for lowpass to complex N-point transformation |

allpasslp2xn | Allpass filter for lowpass to N-point transformation |

allpassrateup | Allpass filter for integer upsample transformation |

allpassshift | Allpass filter for real shift transformation |

allpassshiftc | Allpass filter for complex shift transformation |

autoscale | Automatic dynamic range scaling |

block | Generate block from multirate or multistage filter |

butter | Butterworth IIR filter design using specification object |

ca2tf | Convert coupled allpass filter to transfer function form |

cheby1 | Chebyshev Type I filter using specification object |

cheby2 | Chebyshev Type II filter using specification object |

cl2tf | Convert coupled allpass lattice to transfer function form |

coeffs | Coefficients for filters |

coeread | Read Xilinx COE file |

coewrite | Write Xilinx COE file |

constraincoeffwl | Constrain coefficient wordlength |

convert | Convert filter structure of discrete-time or multirate filter |

cost | Estimate cost of discrete-time or multirate filter |

cumsec | Vector of SOS filters for cumulative sections |

denormalize | Undo filter coefficient and gain changes caused by normalize |

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.allpass | Allpass filter |

dfilt.calattice | Coupled-allpass, lattice filter |

dfilt.calatticepc | Coupled-allpass, power-complementary lattice filter |

dfilt.cascade | Cascade of discrete-time filters |

dfilt.cascadeallpass | Cascade of allpass discrete-time filters |

dfilt.cascadewdfallpass | Cascade allpass WDF filters to construct allpass WDF |

dfilt.delay | Delay filter |

dfilt.df1 | Discrete-time, direct-form I filter |

dfilt.df1sos | Discrete-time, SOS direct-form I filter |

dfilt.df1t | Discrete-time, direct-form I transposed filter |

dfilt.df1tsos | Discrete-time, SOS direct-form I transposed filter |

dfilt.df2 | Discrete-time, direct-form II filter |

dfilt.df2sos | Discrete-time, SOS, direct-form II filter |

dfilt.df2t | Discrete-time, direct-form II transposed filter |

dfilt.df2tsos | Discrete-time, SOS 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.farrowfd | Fractional Delay Farrow filter |

dfilt.farrowlinearfd | Farrow Linear Fractional Delay 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 with maximum phase |

dfilt.latticemamin | Discrete-time, lattice, moving-average filter with minimum phase |

dfilt.parallel | Discrete-time, parallel structure filter |

dfilt.scalar | Discrete-time, scalar filter |

dfilt.wdfallpass | Wave digital allpass filter |

disp | Filter properties and values |

double | Cast fixed-point filter to use double-precision arithmetic |

dsp.AdaptiveLatticeFilter | Adaptive lattice filter |

dsp.AffineProjectionFilter | Compute output, error and coefficients using Affine Projection (AP) Algorithm |

dsp.AllpassFilter | Single section or cascaded allpass filter |

dsp.AllpoleFilter | IIR Filter with no zeros |

dsp.AnalyticSignal | Analytic signals of discrete-time inputs |

dsp.ArrayPlot | Display vectors or arrays |

dsp.ArrayVectorAdder | Add array to vector along specified dimension |

dsp.ArrayVectorDivider | Divide array by vector along specified dimension |

dsp.ArrayVectorMultiplier | Multiply array by vector along specified dimension |

dsp.ArrayVectorSubtractor | Subtract vector from array along specified dimension |

dsp.AudioFileReader | Read audio samples from audio file |

dsp.AudioFileWriter | Write audio samples to audio file |

dsp.AudioPlayer | Play audio data using computer's audio device |

dsp.AudioRecorder | Record audio data using computer's audio device |

dsp.Autocorrelator | Autocorrelation sequence |

dsp.BiquadFilter | IIR filter using biquadratic structures |

dsp.BlockLMSFilter | Output, error, and weights using Block LMS adaptive algorithm |

dsp.Buffer | Buffer input signal |

dsp.BurgAREstimator | Estimate of autoregressive (AR) model parameters using Burg method |

dsp.BurgSpectrumEstimator | Parametric spectral estimate using Burg method |

dsp.CepstralToLPC | Convert cepstral coefficients to linear prediction coefficients |

dsp.Chirp | Generate swept-frequency cosine (chirp) signal |

dsp.CICDecimator | Decimate input using Cascaded Integrator-Comb filter |

dsp.CICInterpolator | Interpolate signal using Cascaded Integrator-Comb filter |

dsp.ColoredNoise | Colored noise generator |

dsp.Convolver | Convolution of two inputs |

dsp.Counter | Count up or down through specified range of numbers |

dsp.CoupledAllpassFilter | Coupled allpass IIR filter |

dsp.Crosscorrelator | Cross-correlation of two inputs |

dsp.CrossSpectrumEstimator | Estimate cross-spectral density |

dsp.CumulativeProduct | Cumulative product of channel, column, or row elements |

dsp.CumulativeSum | Cumulative sum of channel, column, or row elements |

dsp.DCBlocker | Remove DC component |

dsp.DCT | Discrete cosine transform (DCT) |

dsp.Delay | Delay input by specified number of samples or frames |

dsp.DelayLine | Rebuffer sequence of inputs with one-sample shift |

dsp.DigitalDownConverter | Digitally downconvert input signal |

dsp.DigitalFilter | Static or time-varying digital filter |

dsp.DigitalUpConverter | Digitally upconvert input signal |

dsp.DyadicAnalysisFilterBank | Dyadic analysis filter bank |

dsp.DyadicSynthesisFilterBank | Reconstruct signals from subbands |

dsp.FastTransversalFilter | Fast Transversal filter |

dsp.FFT | Discrete Fourier transform |

dsp.FilteredXLMSFilter | Filtered XLMS filter |

dsp.FIRDecimator | polyphase FIR decimator |

dsp.FIRFilter | Static or time-varying FIR filter |

dsp.FIRInterpolator | Polyphase FIR interpolator |

dsp.FIRRateConverter | Sample rate converter |

dsp.FrequencyDomainAdaptiveFilter | Frequency Domain Adaptive filter |

dsp.HDLNCO | Generate real or complex sinusoidal signals—optimized for HDL code generation |

dsp.Histogram | Histogram of input or sequence of inputs |

dsp.IDCT | Inverse discrete cosine transform (IDCT) |

dsp.IFFT | Inverse discrete Fourier transform (IDFFT) |

dsp.IIRFilter | Infinite Impulse Response (IIR) filter |

dsp.Interpolator | Linear or FIR interpolation |

dsp.KalmanFilter | Estimate system measurements and states using Kalman filter |

dsp.LDLFactor | Factor square Hermitian positive definite matrices into components |

dsp.LevinsonSolver | Solve linear system of equations using Levinson-Durbin recursion |

dsp.LMSFilter | LMS adaptive filter |

dsp.LogicAnalyzer | Display transitions of signals over time |

dsp.LowerTriangularSolver | Solve lower-triangular matrix equation |

dsp.LPCToAutocorrelation | Convert linear prediction coefficients to autocorrelation coefficients |

dsp.LPCToCepstral | Convert linear prediction coefficients to cepstral coefficients |

dsp.LPCToLSF | Convert linear prediction coefficients to line spectral frequencies |

dsp.LPCToLSP | Convert linear prediction coefficients to line spectral pairs |

dsp.LPCToRC | Convert linear prediction coefficients to reflection coefficients |

dsp.LSFToLPC | Convert line spectral frequencies to linear prediction coefficients |

dsp.LSPToLPC | Convert line spectral pairs to linear prediction coefficients |

dsp.LUFactor | Factor square matrix into lower and upper triangular matrices |

dsp.MatFileReader | Read MAT file |

dsp.MatFileWriter | Write MAT file |

dsp.Maximum | Find maximum value of input or sequence of inputs |

dsp.Mean | Find mean value of input or sequence of inputs |

dsp.Median | Median value of input |

dsp.Minimum | Find minimum values of input or sequence of inputs |

dsp.NCO | Generate real or complex sinusoidal signals |

dsp.Normalizer | Vector normalization along specified dimension |

dsp.NotchPeakFilter | Second-order tunable notching and peaking IIR filter |

dsp.ParametricEQFilter | Tunable second-order parametric equalizer filter |

dsp.PeakFinder | Determine extrema (maxima or minima) in input signal |

dsp.PeakToPeak | Peak-to-peak value |

dsp.PeakToRMS | Peak-to-root-mean-square value of vector |

dsp.PhaseUnwrapper | Unwrap signal phase |

dsp.PulseMetrics | Pulse metrics of bilevel waveforms |

dsp.RCToAutocorrelation | Convert reflection coefficients to autocorrelation coefficients |

dsp.RCToLPC | Convert reflection coefficients to linear prediction coefficients |

dsp.RLSFilter | Compute output, error and coefficients using Recursive Least Squares (RLS) algorithm |

dsp.RMS | Root mean square of vector elements |

dsp.ScalarQuantizerDecoder | Convert each index value into quantized output value |

dsp.ScalarQuantizerEncoder | Associate input value with index value of quantization region |

dsp.SignalSink | Log simulation data in buffer |

dsp.SignalSource | Import variable from workspace |

dsp.SineWave | Discrete-time sinusoid |

dsp.SpectrumAnalyzer | Display frequency spectrum of time-domain signals |

dsp.SpectrumEstimator | Estimate power spectrum |

dsp.StandardDeviation | Standard deviation of input or sequence of inputs |

dsp.StateLevels | State-level estimation for bilevel rectangular waveform |

dsp.SubbandAnalysisFilter | Decompose signal into high-frequency and low-frequency subbands |

dsp.SubbandSynthesisFilter | Reconstruct signal from high-frequency and low-frequency subbands |

dsp.TimeScope | Time domain signal display |

dsp.TransferFunctionEstimator | Estimate transfer function |

dsp.TransitionMetrics | Transition metrics of bilevel waveforms |

dsp.UDPReceiver | Receive UDP packets from network |

dsp.UDPSender | Send UDP packets to network |

dsp.UniformDecoder | Decode integer input into floating-point output |

dsp.UniformEncoder | Quantize and encode floating-point input into integer output |

dsp.UpperTriangularSolver | Solve upper-triangular matrix equation |

dsp.VariableBandwidthFIRFilter | Variable bandwidth FIR filter |

dsp.VariableBandwidthIIRFilter | Variable bandwidth IIR filter |

dsp.VariableFractionalDelay | Delay input by time-varying fractional number of sample periods |

dsp.VariableIntegerDelay | Delay input by time-varying integer number of sample periods |

dsp.Variance | Variance of input or sequence of inputs |

dsp.VectorQuantizerDecoder | Vector quantizer codeword for given index value |

dsp.VectorQuantizerEncoder | Vector quantization encoding |

dsp.Window | Window object |

dsp.ZeroCrossingDetector | Zero crossing detector |

dsp_links | Identify whether blocks in model are current, deprecated, or obsolete |

dsplib | Open top-level DSP System Toolbox library |

dspstartup | Configure Simulink environment for signal processing systems |

ellip | Elliptic filter using specification object |

euclidfactors | Euclid factors for multirate filter |

fcfwrite | Write file containing filter coefficients |

fdatool | Open Filter Design and Analysis Tool |

fdesign | Filter specification object |

fdesign.arbgrpdelay | Arbitrary group delay filter specification object |

fdesign.arbmag | Arbitrary response magnitude filter specification object |

fdesign.arbmagnphase | Arbitrary response magnitude and phase filter specification object |

fdesign.audioweighting | Audio weighting filter specification object |

fdesign.bandpass | Bandpass filter specification object |

fdesign.bandstop | Bandstop filter specification object |

fdesign.ciccomp | CIC compensator filter specification object |

fdesign.comb | IIR comb filter specification object |

fdesign.decimator | Decimator filter specification object |

fdesign.differentiator | Differentiator filter specification object |

fdesign.fracdelay | Fractional delay filter specification object |

fdesign.halfband | Halfband filter specification object |

fdesign.highpass | Highpass filter specification object |

fdesign.hilbert | Hilbert filter specification object |

fdesign.interpolator | Interpolator filter specification |

fdesign.isinchp | Inverse sinc highpass filter specification |

fdesign.isinclp | Inverse sinc lowpass filter specification |

fdesign.lowpass | Lowpass filter specification |

fdesign.notch | Notch filter specification |

fdesign.nyquist | Nyquist filter specification |

fdesign.octave | Octave filter specification |

fdesign.parameq | Parametric equalizer filter specification |

fdesign.peak | Peak filter specification |

fdesign.polysrc | Construct polynomial sample-rate converter (POLYSRC) filter designer |

fdesign.pulseshaping | Pulse-shaping filter specification object |

fdesign.rsrc | Rational-factor sample-rate converter specification |

fftcoeffs | Frequency-domain coefficients |

filter | Filter data with filter object |

filterbuilder | GUI-based filter design |

filtstates.cic | Store CIC filter states |

fircband | Constrained-band equiripple FIR filter |

firceqrip | Constrained equiripple FIR filter |

fircls | FIR Constrained Least Squares filter |

fireqint | Equiripple FIR interpolators |

firgr | Parks-McClellan FIR filter |

firhalfband | Halfband FIR filter |

firlp2hp | Convert FIR lowpass filter to Type I FIR highpass filter |

firlp2lp | Convert FIR Type I lowpass to FIR Type 1 lowpass with inverse bandwidth |

firlpnorm | Least P-norm optimal FIR filter |

firls | Least-square linear-phase FIR filter design |

firminphase | Minimum-phase FIR spectral factor |

firnyquist | Lowpass Nyquist (Lth-band) FIR filter |

firpr2chfb | Two-channel FIR filter bank for perfect reconstruction |

firtype | Type of linear phase FIR filter |

freqrespest | Frequency response estimate via filtering |

freqrespopts | Options for filter frequency response analysis |

freqsamp | Real or complex frequency-sampled FIR filter from specification object |

freqz | Frequency response of filter |

fvtool | Open Filter Visualization Tool |

gain | CIC filter gain |

grpdelay | Filter group delay |

help | Help for design method with filter specification |

ifir | Interpolated FIR filter from filter specification |

iirbpc2bpc | Transform IIR complex bandpass filter to IIR complex bandpass filter with different characteristics |

iircomb | IIR comb notch or peak filter |

iirftransf | IIR frequency transformation of filter |

iirgrpdelay | Optimal IIR filter with prescribed group-delay |

iirlinphase | Quasi-linear phase IIR filter from halfband filter specification |

iirlp2bp | Transform IIR lowpass filter to IIR bandpass filter |

iirlp2bpc | IIR lowpass to complex bandpass transformation |

iirlp2bs | Transform IIR lowpass filter to IIR bandstop filter |

iirlp2bsc | Transform IIR lowpass filter to IIR complex bandstop filter |

iirlp2hp | Transform lowpass IIR filter to highpass filter |

iirlp2lp | Transform lowpass IIR filter to different lowpass filter |

iirlp2mb | Transform IIR lowpass filter to IIR M-band filter |

iirlp2mbc | Transform IIR lowpass filter to IIR complex M-band filter |

iirlp2xc | Transform IIR lowpass filter to IIR complex N-point filter |

iirlp2xn | Transform IIR lowpass filter to IIR real N-point filter |

iirlpnorm | Least P-norm optimal IIR filter |

iirlpnormc | Constrained least Pth-norm optimal IIR filter |

iirls | Least-squares IIR filter from specification object |

iirnotch | Second-order IIR notch filter |

iirpeak | Second-order IIR peak or resonator filter |

iirpowcomp | Power complementary IIR filter |

iirrateup | Upsample IIR filter by integer factor |

iirshift | Shift frequency response of IIR filter |

iirshiftc | Shift frequency response of IIR complex filter |

impz | Filter impulse response |

info | Information about filter |

int | States from CIC filter |

isallpass | Determine whether filter is allpass |

isfir | Determine whether filter is FIR |

islinphase | Determine whether filter has linear phase |

ismaxphase | Determine whether filter is maximum phase |

isminphase | Determine whether filter is minimum phase |

isreal | Determine whether filter uses real coefficients |

issos | Determine whether filter is SOS form |

isstable | Determine whether filter is stable |

liblinks | Check model for blocks from specific DSP System Toolbox libraries |

limitcycle | Response of single-rate, fixed-point IIR filter |

matlab.System | Base class for System objects |

matlab.system.StringSet | Set of valid string values |

matlab.system.display.Header | Header for System objects properties |

matlab.system.display.Section | Property group section for System objects |

matlab.system.display.SectionGroup | Section group for System objects |

matlab.system.mixin.CustomIcon | Custom icon mixin class |

matlab.system.mixin.FiniteSource | Finite source mixin class |

matlab.system.mixin.Nondirect | Nondirect feedthrough mixin class |

matlab.system.mixin.Propagates | Output signal characteristics propagation mixin class |

maxflat | Maxflat FIR filter |

maximizestopband | Maximize stopband attenuation of fixed-point filter |

maxstep | Maximum step size for adaptive filter convergence |

measure | Measure filter magnitude response |

mfilt | Multirate filter |

mfilt.cascade | Cascade filter objects |

mfilt.cicdecim | Fixed-point CIC decimator |

mfilt.cicinterp | Fixed-point CIC interpolator |

mfilt.farrowsrc | Sample rate converter with arbitrary conversion factor |

mfilt.fftfirinterp | Overlap-add FIR polyphase interpolator |

mfilt.firdecim | Direct-form FIR polyphase decimator |

mfilt.firfracdecim (Obsolete) | Direct-form FIR polyphase fractional decimator |

mfilt.firfracinterp (Obsolete) | Direct-form FIR polyphase fractional interpolator |

mfilt.firinterp | FIR filter-based interpolator |

mfilt.firsrc | Direct-form FIR polyphase sample rate converter |

mfilt.firtdecim | Direct-form transposed FIR filter |

mfilt.holdinterp | FIR hold interpolator |

mfilt.iirdecim | IIR decimator |

mfilt.iirinterp | IIR interpolator |

mfilt.iirwdfdecim | IIR wave digital filter decimator |

mfilt.iirwdfinterp | IIR wave digital filter interpolator |

mfilt.linearinterp | Linear interpolator |

midicallback | Call function handle when MIDI controls change value |

midicontrols | Open a group of MIDI controls for reading |

midiid | Interactively identify MIDI control |

midiread | Return most recent value of MIDI controls |

midisync | Send values to MIDI controls to synchronize |

minimizecoeffwl | Minimum wordlength fixed-point filter |

msepred | Predicted mean-squared error for adaptive filter |

msesim | Measured mean-squared error for adaptive filter |

multistage | Multistage filter from specification object |

noisepsd | Power spectral density of filter output due to roundoff noise |

noisepsdopts | Options for running filter output noise PSD |

norm | P-norm of filter |

normalize | Normalize filter numerator or feed-forward coefficients |

normalizefreq | Switch filter specification between normalized frequency and absolute frequency |

nstates | Number of filter states |

order | Order of fixed-point filter |

parallel | Multirate parallel filter structure |

phasedelay | Phase delay of filter |

phasez | Unwrapped phase response for filter |

polyphase | Polyphase decomposition of multirate filter |

qreport | Most recent fixed-point filtering operation report |

realizemdl | Simulink subsystem block for filter |

rebuffer_delay | Number of samples of delay introduced by buffering and unbuffering operations |

reffilter | Reference filter for fixed-point or single-precision filter |

reorder | Rearrange sections in SOS filter |

reset | Reset filter properties to initial conditions |

scale | Scale sections of SOS filter |

scalecheck | Check scaling of SOS filter |

scaleopts | Options for scaling SOS filter |

set2int | Configure filter for integer filtering |

setspecs | Specifications for filter specification object |

Simulink.scopes.TimeScopeConfiguration | Configure Time Scope for programmatic access |

sos | Convert quantized filter to second–order sections (SOS) form |

spbscopes.SpectrumAnalyzerConfiguration | Configure Spectrum Analyzer for programmatic access |

specifyall | Fixed-point scaling modes in direct-form FIR filter |

stepz | Step response for filter |

sysobj | Create filter System object from discrete-time filter or multirate filter |

tf2ca | Transfer function to coupled allpass |

tf2cl | Transfer function to coupled allpass lattice |

validstructures | Structures for specification object with design method |

wdf2allpass | Wave Digital Filter to allpass coefficient transformation |

window | FIR filter using windowed impulse response |

zerophase | Zero-phase response for filter |

zpkbpc2bpc | Zero-pole-gain complex bandpass frequency transformation |

zpkftransf | Zero-pole-gain frequency transformation |

zpklp2bp | Zero-pole-gain lowpass to bandpass frequency transformation |

zpklp2bpc | Zero-pole-gain lowpass to complex bandpass frequency transformation |

zpklp2bs | Zero-pole-gain lowpass to bandstop frequency transformation |

zpklp2bsc | Zero-pole-gain lowpass to complex bandstop frequency transformation |

zpklp2hp | Zero-pole-gain lowpass to highpass frequency transformation |

zpklp2lp | Zero-pole-gain lowpass to lowpass frequency transformation |

zpklp2mb | Zero-pole-gain lowpass to M-band frequency transformation |

zpklp2mbc | Zero-pole-gain lowpass to complex M-band frequency transformation |

zpklp2xc | Zero-pole-gain lowpass to complex N-point frequency transformation |

zpklp2xn | Zero-pole-gain lowpass to N-point frequency transformation |

zpkrateup | Zero-pole-gain complex bandpass frequency transformation |

zpkshift | Zero-pole-gain real shift frequency transformation |

zpkshiftc | Zero-pole-gain complex shift frequency transformation |

zplane | Zero-poles plots for filters |

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