Sampling a signal causes the original signal spectrum (blue) to create sum (purple) and difference (red) frequencies around the sampling frequency, fS. When the difference signals fall into the ...

Modern SDRs evolve from configurable platforms into intelligent wideband sensing systems combining high dynamic range, ...

US aviation authorities proposed rules that could require airlines to spend billions of dollars replacing or updating ...

For years, we've thought of autism as lying on a spectrum, but emerging evidence suggests that it comes in several distinct ...

Terahertz (THz) radiation, which occupies the frequency band between microwaves and infrared light, is essential in many next ...

Scientists at the Paul Scherrer Institute PSI have, for the first time, demonstrated a technique that synchronizes ultrashort ...

Terahertz (THz) radiation underpins many next-generation technologies and advances in materials science, but current THz ...

Still stuck with a Gmail address from your 2010 era? Here’s how you can finally change your Gmail address without losing a ...

Finally, Lobby is a nice place to check if you're just passing by. Each of the staircases has small side rooms you can enter ...

There are seven types of electromagnetic (EM) waves, which make up the electromagnetic spectrum. Electromagnetic waves are transverse waves, and travel at the speed of light. Different types of ...