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revlevinson (MathScript RT Module Function)

LabVIEW 2012 MathScript RT Module Help

Edition Date: June 2012

Part Number: 373123C-01

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Owning Class: modeling and prediction

Requires: MathScript RT Module

Syntax

r = revlevinson(a, err)

[r, u] = revlevinson(a, err)

[r, u, k] = revlevinson(a, err)

[r, u, k, e] = revlevinson(a, err)

Legacy Name: rlevinson

Description

Uses reverse Levinson-Durbin recursion to find the autocorrelation sequence.

Examples

Inputs

Name Description
a Specifies the coefficients of the prediction polynomial.
err Specifies the prediction error.

Outputs

Name Description
r Returns the autocorrelation sequence.
u Returns the upper-triangular matrix such that u*diag(1./e)*u' equals inv(toeplitz(r,r')).
k Returns the reflection coefficients.
e Returns the prediction error of a different order.

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

r = [1, 3, 2, 4];
n = 3;
[a, err, k] = levinson(r, n);
[rr, uu, kk, ee] = revlevinson(a, err)

Related Topics

levinson


 

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