AMES, Iowa – Something called the fast Fourier transform is running on your cell phone right now. The FFT, as it is known, is a signal-processing algorithm that you use more than you realize. It is, ...

Design linear discrete-time systems and filters and analyze their behavior. Represent continuous-time signals and linear systems in discrete time, so that such signals can be recovered in continuous ...

Issued 17 th April 2002 - RF Engines Limited (RFEL), the Isle of Wight, UK -- based signal processing specialist, has released details of its first product in its vectisâ„¢ family of multi-radix ...

Here you are going to write a function that uses the in-built functions pwelch and cpsd, and you are going to use the results to examine H1 and H2 estimates of H, and the coherence function. You will ...

RF Engines (RFEL), the Isle of Wight based signal processing specialist, has announced two contracts for 2004. Although customer names haven’t been released, the two deals are for a pipelined FFT ...

Pass/fail testing is an analysis function of an oscilloscope that shows whether waveforms meet a set of defined criteria. The criteria are defined by a series of one or more qualifying conditions that ...

A few years ago, [Artem] learned about ways to focus sound in an issue of Popular Mechanics. If sound can be focused, he reasoned, it could be focused onto a plane of microphones. Get enough ...

The Allen Telescope Array, Hat Creek Radio Observatory. Credit: Alexander Pollak. Radio interferometry is a technique in radio astronomy where signals from two or more radio telescopes are combined to ...

The linear canonical transform (LCT) is a versatile integral transform that generalises classical transforms such as the Fourier, fractional Fourier, and Fresnel transforms. By utilising four ...