Prove that for a linear-phase filter whose impulse response has length (M L), its (M) polyphase components
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Prove that for a linear-phase filter whose impulse response has length \(M L\), its \(M\) polyphase components (Equation (8.35)) should satisfy
\[E_{j}(z)= \pm z^{-(L-1)} E_{M-1-j}\left(z^{-1}\right) .\]
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Related Book For 
Digital Signal Processing System Analysis And Design
ISBN: 9780521887755
2nd Edition
Authors: Paulo S. R. Diniz, Eduardo A. B. Da Silva , Sergio L. Netto
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