Spectrum analyzers let engineers view signals in thefrequency domain, but today's wireless signals have frequency characteristicsthat change with time. Some signals switch off to conserve power, ...

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 ...

From guest blogger Gina Bonini: Over the last two posts I’ve reviewed two key components of scope FFTs: windowing factors and aliasing. In this final installment I’ll take a look at a ...

If you’ve been tuned in to Electonic Design’s articles this past year in the test & measurement arena, you’re probably aware of a series by Colin Mattson (Keysight Technologies) on advanced ...

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 ...

Lock-in amplifiers were invented in the 1930s [1, 2, 3] and commercialized [4] in the mid 20 th century as electrical instruments that are capable of extracting signal amplitudes and phases in ...