Perraudin, NathanaëlHolighaus, NickiSøndergaard, PeterBalazs, Peter2013-09-032013-09-032013-09-032013https://infoscience.epfl.ch/handle/20.500.14299/94442Redundant Gabor frames admit an infinite number of dual frames, yet only the canonical dual Gabor system, con- structed from the minimal l2-norm dual window, is widely used. This window function however, might lack desirable properties, such as good time-frequency concentration, small support or smoothness. We employ convex optimization methods to design dual windows satisfying the Wexler-Raz equations and optimizing various constraints. Numerical experiments show that alternate dual windows with considerably improved features can be foundGabordualwindowsconvex optimizationtext::conference output::conference paper not in proceedings