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function [k,R0]=ac2rc(R) %AC2RC Convert autocorrelation sequence to reflection coefficients. % [K,R0] = AC2RC(R) returns the reflection coefficients, K, and the zero lag % autocorrelation, R0, based on the autocorrelation sequence, R. % % See also RC2AC, POLY2RC, RC2POLY, POLY2AC, AC2POLY. % References: S. Kay, Modern Spectral Estimation, % Prentice Hall, N.J., 1987, Chapter 6. % % Author(s): A. Ramasubramanian % Copyright 1988-2004 The MathWorks, Inc. % Check the input data type. Single precision is not supported. try chkinputdatatype(R); catch ME throwAsCaller(ME); end [a_unused,efinal,k] = levinson(R); %#ok R0 = R(1,:).'; % [EOF] ac2rc.m