rc2poly Convert reflection coefficients to prediction filter polynomial a = rc2poly(kr) [a, efinal] = rc2poly(kr,R0) kr: Reflection coefficients. R0: The zero-lag autocorrelation. a: Prediciton polynomial. efinal: the final prediction error. a = rc2poly(k) converts the reflection coefficients k corresponding to the lattice structure to the prediction filter polynomial a, with a(1) = 1. The output a is row vector of length length(k) + 1. [a,efinal] = rc2poly(k,r0) returns the final prediction error efinal based on the zero-lag autocorrelation, r0.