Practical Solution of Periodic Filtered Approximation as a Convex Quadratic Integer Program

The problem addressed in this paper comes from electronics and arises in the development of pulse coders for actuation, signal synthesis and, perspectively, audio amplification. The problem is formalized and efficient optimization techniques are considered for its solution. Being the standard approach used in electronics based on modulators, a comparison between the reach of these techniques and ad-hoc exact and heuristic solvers is proposed for some significant sample cases, considering both performance and computational efforts.