Design of minimum-phase FIR digital filters by differential cepstrum
Soo‐Chang Pei, Shen-Tan Lu · IEEE Transactions on Circuits and Systems · 1986
The differential cepstrum is introduced to design equiripple minimum phase FIR filters by using cepstral deconvolution; this fast procedure only takes three FFT computation and avoids the complicated phase wrapping and polynomial root-finding algorithms.