On the minimum phase property of prediction-error polynomials
Palghat P. Vaidyanathan, Jamal Tuqan, A. Kirac · IEEE Signal Processing Letters · 1997
We provide a simple proof of the minimum phase property of the optimum linear prediction polynomial. The proof follows directly from the fact that the minimized prediction error has to satisfy the orthogonality principle. Additional insights provided by this proof are also discussed.