lp_to_lp (MathScript RT Module Function)

LabVIEW 2012 MathScript RT Module Help

Edition Date: June 2012

Part Number: 373123C-01

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Owning Class: filter design

Requires: MathScript RT Module

Syntax

[num2, den2] = lp_to_lp(num1, den1, w)

[a1, b2, c2, d2] = lp_to_lp(a1, b1, c1, d1, w)

Transforms an analog lowpass filter to a lowpass filter.

Name	Description
num1, den1	Specify the transfer function of the filter.
a1, b1, c1, d1	Specify the state-space representation of the filter.
w	Specifies the cutoff frequency.

Name	Description
num2, den2	Return the transfer function of the filter.
a2, b2, c2, d2	Return the state-space representation of the filter.

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

num1 = [2, 1, 9, 2, 0.1, 8];
den1 = [1, -9, 7, -3, 1, 0.1];
w = 50E3;
[num2, den2] = lp_to_lp(num1, den1, w)