A block diagram of a typical sampled data DSP system is shown in Figure 2-1. Prior to the actual analog-to-digital conversion, the analog signal usually passes through some sort of signal conditioning ...

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 ...

In previous installments of the AudioFile, we've talked about basic PCM audio, which encodes audio into a series of numbers that a computer can play or manipulate. We've also discussed the process of ...

Digital signal processing is often a mystery to many people, but the underlying principles are fairly straightforward and within the grasp of anyone with a technical background. In this feature, we’ll ...

An electro–optic scheme for sampling the electric field of laser pulses without the need for any synchronization could become a valuable tool for characterizing sources that emit in the infrared and ...

Past columns have discussed sampling analog signals and analog-to-digital converter (ADC) technologies. In my experience, though, engineers who simply want to use ADCs rather than design with them, ...

An arbitrary waveform generator (Arb) can be seen as a reversed version of a real-time DSO. Both instrument categories share the same theoretical principles applied to sampled signals. There are, ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. For the most part, the mechanisms of the natural world around us, including sound, operate in the ...

Suppose you take a few measurements of a time-varying signal. Let’s say for concreteness that you have a microcontroller that reads some voltage 100 times per second. Collecting a bunch of data points ...