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Conversion of autocorrelation sequence to prediction polynomial.
Syntax
a = ac2poly(r) [a,efinal] = ac2poly(r)
Description
a = ac2poly(r)
finds the prediction polynomial, a, corresponding to the autocorrelation sequence r. a is the same length as r, and a(1) = 1.
[a,efinal] = ac2poly(r)
returns the final prediction error, efinal.
Example
Consider the autocorrelation sequencer = [5.0000 -1.5450 -3.9547 3.9331 1.4681 -4.7500];The equivalent prediction polynomial is
a = ac2poly(r) a = 1.0000 0.6147 0.9898 0.0004 0.0034 -0.0077
See Also
ac2rc |
Conversion of autocorrelation sequence to reflection coefficients. |
poly2ac |
Conversion of prediction polynomial to autocorrelation sequence. |
rc2poly |
Conversion of prediction polynomial to reflection coefficients. |
References
[1] Kay, S.M. Modern Spectral Estimation. Englewood Cliffs, NJ: Prentice-Hall, 1988.