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filteric (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 implementation

Requires: MathScript RT Module

Syntax

z = filteric(b, a, y)

z = filteric(b, a, y, x)

Legacy Name: filtic

Description

Returns the initial conditions for a transposed direct-form II filter.

Examples

Inputs

Name Description
b Specifies the forward filter coefficients. b is a vector.
a Specifies the backward filter coefficients. a is a vector.
y Specifies the output signal to filter. y is a real or complex vector. y starts from the most recent output. If y is shorter than length(a) - 1, LabVIEW pads the end of y with zeros. Otherwise, LabVIEW ignores the elements of y beyond y(length(a) - 1).
x Specifies the input signal to filter. x is a real or complex vector. x starts from the most recent input. If x is shorter than length(b) - 1, LabVIEW pads the end of x with zeros. Otherwise, LabVIEW ignores the elements of x beyond x(length(b) - 1).

Outputs

Name Description
z Returns the state of the delays given the previous inputs in x and the previous outputs in y.

Details

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

Examples

b = [1, 2, 3, 4, 5];
a = [6, 7, 8];
y = [1, 2];
x = [3, 4, 5, 6];
z = filteric(b, a, y, x)

Related Topics

filter
filter_2d


 

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