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tf_to_lattice (MathScript RT Module Function)

LabVIEW 2012 MathScript RT Module Help

Edition Date: June 2012

Part Number: 373123C-01

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Owning Class: linear systems

Requires: MathScript RT Module


k = tf_to_lattice(b)

k = tf_to_lattice(b, option)

[k, v] = tf_to_lattice(b, a)

Legacy Name: tf2latc


Converts a transfer function to a lattice filter.



Name Description
b Specifies the forward filter coefficients. b is a real vector.
a Specifies the backward filter coefficients. a is a real vector.
option Specifies the type of filter. option is a string that accepts the following values:

'min' Minimum-phase FIR filter.
'max' Maximum-phase FIR filter.


Name Description
k Returns the lattice reflection coefficients.
v Returns the lattice ladder coefficients.


The following table lists the support characteristics of this function.

Supported in the LabVIEW Run-Time Engine Yes
Supported on RT targets Yes
Suitable for bounded execution times on RT Not characterized


b = [1.06, 0.374, 0.422, 0.1];
a = [1, 0.22, 0.26, 0.5];
[k, v] = tf_to_lattice(b, a)

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