2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/176186We analyze two kinds of matched filters for data output of a spherical resonant GW detector. In order to filter the data of a real sphere, a strategy is proposed, firstly using an omnidirectional in-line filter, which is supposed to select periodograms with excitations, secondly by performing a directional filter on such selected periodograms, finding the wave arrival time, direction and polarization. We point out that, as the analytical simplifications occurring in the ideal 6 transducers TIGA sphere do not hold for a real sphere, using a 5 transducers configuration could be a more convenient choice.15 pages and 4 figures, version accepted for publication in PRDGeneral Relativity and Quantum CosmologyAstrophysicstext