DSP Academy Team

DSP Academy is written by a self-taught signal-processing enthusiast, not a university lecturer. Because there is no degree behind the name, every lesson is checked against standard textbooks (Oppenheim & Schafer, Lyons, Smith) and official documentation, every code example is run before it is published, and mistakes are corrected openly with a dated note.

• The Unit Circle: Everything You Need to KnowThe unit circle is one of the most useful tools in trigonometry. This guide covers what it is, how it works, how to memorize…
• Zero Forcing Explained: A Simple Guide for MIMO and BeamformingImagine two people talking in a noisy room, and each one is shouting at a different friend across the table. Their voices blend into…
• Frequency-Locked Loop Explained: A Simple Guide for 2026Your phone, your Wi-Fi router, and your car radio all depend on circuits that keep one signal matched to another. A frequency locked loop…
• What Is Aliasing? Definition, Nyquist Rule and Python ExampleWhat is aliasing in signal processing? The Nyquist rule fs > 2·fmax, how to calculate the alias frequency |f − k·fs|, Python examples with…
• Impulse Response Explained: A Simple Guide for StudentsWhat if one tiny, instant spike could reveal everything about how a system behaves? That is the core idea behind the impulse response, and…
• STFT Explained: Simple Guide to Short-Time Fourier TransformHave you ever wondered how your phone recognizes a song from just a few seconds of audio, or how a doctor reads a heartbeat…
• Implementing an FFT on a Cortex-M55: Easy Step-by-Step GuideWant your microcontroller to hear which notes are playing? Implementing an FFT on a Cortex-M55 makes that possible on a single tiny chip. A…
• Signal in DSP: Easy Guide to Types & ExamplesIntroduction Right now, your phone is turning your voice into a stream of numbers, thousands of them every second. Each number is a tiny…
• Fourier Series: Formula, Examples & ApplicationsINTRODUCTION Every sound you have ever heard, from a piano note to your best friend’s voice, is a single wiggling pressure wave. So how…
• MATLAB Print: The Complete Guide to Console, PDF & EPS OutputIntroduction Did you know that over 10,000 universities and companies worldwide use MATLAB, yet most beginners struggle with something as basic as printing a…