It is not often that a comet defies one of the most fundamental visual cues in astronomy-but 3I/ATLAS has done exactly that.

As we bid farewell to 2025, the interstellar comet 3I/ATLAS continues to astound astronomers with unexpected findings even as it journeys out of our solar system. This article explores the fascinating ...

Modulation advances have fueled more efficient use of bandwidth, although conventional modulation formats still require allowance for upper and lower sidebands around the carrier frequency. Ultra ...

Abstract: The modulation transfer function (MTF) quantitatively describes the ability of an optical or imaging system to reproduce contrast at various spatial frequencies. The ISO 12233 edge-based ...

Abstract: This article presents a free-harmonic ac/dc/ac converter structure using a novel modulation approach for asymmetrical cascade H-bridge multilevel inverter and, conventional rectifiers ...