Modern oscilloscopes capture, view, measure, and analyze complex RF signals in the time, frequency, and modulation domains. Time-domain analysis, the original oscilloscope function, allows users to ...

Most of today's DSP µPs, which are offspring of standard µPs, operate in the time domain. However, frequency-domain operation provides benefits for a whole spectrum of applications. Ever-increasing ...

There is no such thing as a “frequency domain” — there is only dv/dt. This artificial notion was born in 1807, when mathematician Joseph Fourier announced to the French Academy a discovery so ...

Fig 1. The Tektronix MDO4000 enables designers, for the first time, to capture time-correlated analogue, digital, and RF signals for a complete system view of their device. Fig 2. The spectrum shown ...

You probably have at least a nodding familiarity with the Fourier transform, a mathematical process for transforming a time-domain signal into a frequency domain signal. In particular, for computers, ...

A research team from Peking University has successfully developed a vanadium oxide (VO₂)-based “locally active memristive ...

Wavelets provide new capabilities for analyzing real-time signals. This introductory article provides an overview and presents the basic mechanisms involved in wavelets. In many signal processing ...