lp2hp (MathScript Function) (Windows, Not in Base Package)

LabVIEW 8.5 Help
August 2007

NI Part Number:
371361D-01

»View Product Info

Member of the filter design class.

Syntax

[num2, den2] = lp2hp(num1, den1, w)

[a1, b2, c2, d2] = lp2hp(a1, b1, c1, d1, w)

Transforms an analog lowpass filter to a highpass 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.

num1 = [2, 1, 9, 2, 0.1, 8];
den1 = [1, -9, 7, -3, 1, 0.1];
w = 50E3;
[num2, den2] = lp2hp(num1, den1, w)