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.