The above movie animates an optimization of a complex nonlinear phase filter with minimum-L1-norm stopband according to the ideas in paper J. O. Coleman and D. P. Scholnik, ``Design of Nonlinear-Phase FIR Filters with Second-Order Cone Programming,'' Proc. 1999 Midwest Symp. on Circuits and Systems, Las Cruces, NM, August 1999.
Each blue line represents a constraint.
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