latc2tf
Convert lattice filter parameters to transfer function form
Syntax
[num,den] = latc2tf(k,v)
[num,den] = latc2tf(k,'iiroption
')
num = latc2tf(k,'firoption'
)
Description
[num,den] = latc2tf(k,v)
finds the transfer function
numerator num
and denominator den
from
the IIR lattice coefficients k
and ladder coefficients v
.
[num,den] = latc2tf(k,'
produces
an IIR filter transfer function according to the value of iiroption
')'
iiroption
'
:
'allpole'
: Produces an all-pole filter transfer function from the associated all-pole IIR lattice filter coefficientsk
.'allpass'
: Produces an allpass filter transfer function from the associated allpass IIR lattice filter coefficientsk
.
num = latc2tf(k,
produces
an FIR filter according to the value of 'firoption'
)'firoption'
:
'min'
: Produces a minimum-phase FIR filter numerator from the associated minimum-phase FIR lattice filter coefficientsk
.'max'
: Produces a maximum-phase FIR filter numerator from the associated maximum-phase FIR lattice filter coefficientsk
.'FIR'
: Produces a general FIR filter numerator from the lattice filter coefficientsk
(this is equivalent to not specifying'
iiroption
'
or'
firoption
'
).
Version History
Introduced before R2006a