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Convert autocorrelation sequence to reflection coefficients


[k,r0] = ac2rc(r)


[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.


You can apply this function to real or complex data.


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

Version History

Introduced before R2006a

See Also

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