FREQUENCY ESTIMATION USING AN ARTIFICIAL NEURAL NETWORK AND THE DISCRETE FOURIER TRANSFORM. - Burtea, Daniela Giorgiana; Tufisi, Cristian; Gillich, Gilbert-Rainer; Constantin, Carla-Silvana (Annals of 'Constantin Brancusi' University of Targu-Jiu. Engineering Series / Analele Universităţii Constantin Brâncuşi din Târgu-Jiu. Seria Inginerie, 2022)