Time-frequency signal analysis techniques furnish a unified framework for examining non-stationary and multicomponent signals by representing their energy distribution jointly in time and frequency.

When you’re looking to add some wireless functionality to a project, there are no shortage of options. You really don’t need to know much of the technical details to make use of the more ...

Sound can be represented with both analog or digital audio signals. Analog audio signals use electrical voltage levels. Different types of transducers convert sound to electrical signals and ...

Using the same technology that allows high-frequency signals to travel on regular phone lines, researchers tested sending extremely high-frequency, 200 GHz signals through a pair of copper wires. The ...

Researchers at Aalto University believe the answer may not be more antennas, repeaters, or powered networking equipment.

A research team led by Prof. Chen Yan at the University of Science and Technology of China (USTC) has taken a leap forward in cardiovascular health monitoring. They have developed a non-invasive radio ...

New tech from Oak Ridge National Lab finds hidden tunnels by beaming sound from underground. See how it protects vital ...