[Simon Inns] just rolled out his latest project, a PIC based spectrum analyzer. He’s using a Fast Fourier Transform routine crafted in C to run as efficiently as possible on the 8-bit chip. The video ...

In this article we will study the spectral properties of a deterministic signal exponentially damped in the past and in the future (the damping in the future is controlled by a time constant). The ...

Emphasizing achievable results and conclusions through numerous worked examples, while reducing the use of mathematics for an easier grasp of the concepts, this text presents DSP principles, ...

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FTIR, or Fourier Transform Infrared Spectroscopy, is a method that measures how a sample absorbs infrared (IR) light. When IR light passes through a sample, different molecular bonds within the sample ...

While [Vinod] says he’s not an expert in this sort of thing, we really like his audio spectrum analyzer build from a simple microcontroller and LCD display. It is a well-studied fact that every audio ...

A key algorithm that quietly empowers and simplifies our electronics is the Fourier transform, which turns the graph of a signal varying in time into a graph that describes it in terms of its ...