Signal Processing Toolbox

dfilt.latticeallpass

Discrete-time, lattice allpass filter

Syntax

• Hd = dfilt.latticeallpass(k)
  Hd = dfilt.latticeallpass
  

Description

Hd = dfilt.latticeallpass(k) returns a discrete-time, lattice allpass filter, Hd, with lattice coefficients, k.

Hd = dfilt.latticeallpass returns a default, discrete-time, lattice allpass filter, Hd, with k=[ ]. This filter passes the input through to the output unchanged.

The resulting filter states column vector is

Examples

Form a third-order lattice allpass filter structure for a dfilt object, Hd, using the following lattice coefficients:

• k = [.66 .7 .44];
  Hd = dfilt.latticeallpass(k)
  Hd =
               FilterStructure: 'Lattice Allpass'
                       Lattice: [0.6600 0.7000 0.4400]
              PersistentMemory: false
  

See Also

dfilt, dfilt.latticear, dfilt.latticearma, dfilt.latticemamax, dfilt.latticemamin

dfilt.fftfir

dfilt.latticear

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