Introduction to Signals and Systems Analysis

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https://www.electronics-lab.com/article/introduction-to-signals-and-systems-analysis/

What is a Signal? One of the definitions of ‘signal‘ in the Merriam-Webster dictionary is: “A detectable physical quantity or impulse (as a voltage, current, or magnetic field strength) by which messages or information can be transmitted from a source to a destination.” A signal is simply a function, i.e., a mathematical relationship in which […]

Harmonics

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https://www.electronics-lab.com/article/harmonics/

Introduction Periodic signals are not always perfect sinusoidal patterns such as presented in one of our previous tutorials about Sinusoidal Waveforms. Sometimes, signals can indeed be a superposition of simple sine waves and they are known as complex waveforms. In this tutorial, we will focus on complex periodic waveforms to understand what they consist of […]