dfilt.calattice
Coupled-allpass, lattice filter
Syntax
hd = dfilt.calattice(k1,k2,beta)
hd = dfilt.calattice
Description
hd = dfilt.calattice(k1,k2,beta) returns
a discrete-time, coupled-allpass, lattice filter object hd,
which is two allpass, lattice filter structures coupled together.
The lattice coefficients for each structure are vectors k1 and k2.
Input argument beta is shown in the diagram below.
hd = dfilt.calattice returns a default, discrete-time
coupled-allpass, lattice filter object, hd. The default values are
k1 = k2 = [], and beta = 1.
This filter passes the input through to the output unchanged.
Examples
Specify a third-order lattice coupled-allpass filter structure
for a dfilt filter, hd with
the following code.
k1 = [0.9511 + 1j*0.3088; 0.7511 + 1j*0.1158]; k2 = 0.7502 - 1j*0.1218; beta = 0.1385 + 1j*0.9904; hd = dfilt.calattice(k1,k2,beta);
The Allpass1 and Allpass2 properties
store vectors of coefficients.
See Also
dfilt | dfilt.calatticepc | dfilt.latticeallpass | dfilt.latticear | dfilt.latticearma | dfilt.latticemamax | dfilt.latticemamin