Filter design and equalization - MIT OpenCourseWare
Filter design and equalization - MIT OpenCourseWare
Filter design and equalization - MIT OpenCourseWare
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Fourier transform of autocorrelation coefficients isn−1−iωτR(ω) = e r τ = r 0 + 2r t cos ωt = | H(ω)|τ t=12• always have R(ω)≥0 for all ω• can express magnitude specification asL(ω) 2 ≤ R(ω) ≤ U(ω) 2 ,ω ∈ [0,π]. . . convex in r<strong>Filter</strong> <strong>design</strong> 28