Signal Processing Toolbox™

ac2rc - Convert autocorrelation sequence to reflection coefficients

Syntax

[k,r0] = ac2rc(r)

Description

[k,r0] = ac2rc(r) finds the reflection coefficients k corresponding to the autocorrelation sequence r. r0 contains the zero-lag autocorrelation. If r is a matrix where the columns are separate channels of autocorrelation sequences, r0 contains the zero-lag autocorrelation coefficient for each channel. These reflection coefficients can be used to specify the lattice prediction filter that produces a sequence with approximately the same autocorrelation sequence as the given sequence r.

Remarks

You can apply this function to real or complex data.

References

[1] Kay, S.M. Modern Spectral Estimation. Englewood Cliffs, NJ: Prentice-Hall, 1988.

See Also

ac2poly, poly2rc, rc2ac

ac2poly

angle