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Accurate real-time measurement of the synchrophasor of an electric waveform is one of the many open challenges in future smart power grids. Indeed, monitoring, protection and control capabilities of electric energy transmission and distribution systems heavily depend on the performance of the employed Phasor Measurements Units (PMUs). This paper proposes an enhanced DFT-based dynamic synchrophasor estimator that exhibits improved response time and accuracy performances with respect to the related state-of-the-art. A comprehensive characterization of the synchrophasor estimation accuracy, expressed in terms of Total Vector Error (TVE), is provided under both steady-state and dynamic conditions.