ac_to_rc (MathScript RT Module Function)
Owning Class: modeling and prediction
Requires: MathScript RT Module
Syntax
[k, r0] = ac_to_rc(r)
Legacy Name: ac2rc
Description
Generates a sequence of reflection coefficients from an autocorrelation sequence input. LabVIEW then can use the coefficients in k to design a lattice prediction filter. This filter generates an autocorrelation sequence similar to the original sequence r.
Inputs
| Name | Description |
|---|---|
| r | Specifies the autocorrelation sequence. r is a vector. |
Outputs
| Name | Description |
|---|---|
| k | Returns the reflection coefficients. length(k) equals length(r) - 1. |
| r0 | Returns the zero lag of the autocorrelation sequence. |
Examples
r = [0.5, 0, -1.75, 3, -2];
[k, r0] = ac_to_rc(r)