While fewer and fewer people are listening to FM radio today, it was hot stuff amid its widespread rollout during the late 1930s and early 40s. Short for frequency modulation, FM’s appeal compared to ...

Wireless communication relies on radio waves, but reflections and interference can cause signals to fade or cancel out before reaching your device. This video explains the physics behind radio ...

Abstract: We present the first demonstration of an acoustic quadrature amplitude modulation (QAM) circuit based on polarization switching of ferroelectric thin films. Electric field control of ...

Spatial control of the phase and amplitude of a laser beam is useful for applications ranging from imaging and holography to interferometry and optical tweezers, reports Neil Savage. Digital spatial ...

Abstract: Deep learning (DL)-based automatic modulation classification (AMC) exhibits substantial potential to improve signal processing accuracy and efficiency in intelligent communication systems.