Nature

Frequency-time coherence for all-optical sampling without optical pulse source

Analog-to-digital conversion (ADC) is essential for precise transformation and processing of information carried by electromagnetic signals into their binary correspondent. In computer technology, the ...
EDN

Signal Chain Basics #160: Making sense of coherent and noncoherent sampling in data-converter testing

Bad Fast Fourier Transfer (FFT) data captures can cause you to misunderstand the true performance of your analog-to-digital converter (ADC). Some engineers like to coherently sample and capture data ...
EDN

Digital Signal Processing – Sampling a Signal

The input to your system has a receiver with a high order low pass filter and a 3 dB point of 100 MHz. You then sample the signal with an Analog to Digital Converter. What is the maximum time interval ...
Nature

Improved Compressive Sensing of Natural Scenes Using Localized Random Sampling

Sampling protocols have drastically changed with the discovery of compressive sensing (CS) data acquisition and signal recovery 1,2. Prior to the development of CS theory, the Shannon-Nyquist theorem ...
Electronic Design

What’s The Difference Between Real-Time And Sampling Oscilloscopes?

This file type includes high resolution graphics and schematics when applicable. Author’s note: Early in my engineering career, I accepted a research project to characterize light transmission ...