How do you build an FMCW Radar?

Video Description

Have you ever looked at an FMCW radar block diagram and had no idea what the components do? In this video I attempt to clear this up a bit by going through a simplified block diagram and explaining the components, step-by-step. The video then takes a short detour into the digital domain where I briefly touch on the expansive world of radar signal processing. In this case I literally only go into any depth about the FFT, but I mention some of the other very exciting places DSP can take you! There are so many other applications and implementations of FMCW radar that this video could not possibly cover, so take all this information with a grain of salt and hopefully you'll go on to explore it further. I have more videos coming down the pipeline on some really exciting topics, so stick around :) -------------------------------------------------- - Channel Memberships: https://marshallbruner.com/pages/supporters - Merch: https://marshallbruner.com/collections/all - Website: https://marshallbruner.com/ -------------------------------------------------- All animations shown were created using Manim Community (https://docs.manim.community) - a Python animation library written by 3Blue1Brown (https://www.youtube.com/@3blue1brown) and maintained by the community. Huge thanks to everyone working on this incredible project! Resources: - Python code for implementing the FFT - https://drive.google.com/file/d/1C23iVn69akk7nb7pjkF8tZeVIQTWzghF/view?usp=sharing - All code for this video - https://github.com/brunerm99/videos Some cool FMCW and radar signal processing applications: - The NOAA FM-CW Snow-Level Radar - https://psl.noaa.gov/data/obs/instruments/FmcwSnowLevelRadar.pdf - The PARSAX - full polarimetric FMCW radar with dual-orthogonal signals - https://ieeexplore.ieee.org/document/4760807 - Fundamentals of Radar Signal Processing - https://www.mhprofessional.com/fundamentals-of-radar-signal-processing-third-edition-9781260468717-usa-group --------------------------------------------------- References: - Fundamentals of Phase Locked Loops (PLLs) - https://www.analog.com/media/en/training-seminars/tutorials/MT-086.pdf - What is a Mixer? Modern RF and Microwave Mixers Explained - https://www.youtube.com/watch?v=WwJKxvz7qbs&t=1s - Understanding Mixers and Their Parameters (.PDF Download) - https://www.mwrf.com/home/whitepaper/21847858/understanding-mixers-and-their-parameters-pdf-download - Small and short range radar systems (book) - https://www.amazon.com/Short-Range-Practical-Approaches-Electrical-Engineering/dp/143986599X - Low pass filter used in video - https://minicircuits.com/pdfs/LFCW-1062+.pdf - Sampling signals - Iain Explains https://youtu.be/Ftj3pQmyvuY?si=Nund8KUgP3PLyyUk - Fourier Transform - 3B1B https://www.youtube.com/watch?v=spUNpyF58BY -------------------------------------------------- Attributions: - Gears: https://www.youtube.com/@curiouswalk - Microcontroller image: https://www.freepik.com/icon/microcontroller_5761031 - Car SVGs - https://www.vecteezy.com/free-vector/car-top-view -------------------------------------------------- Timestamps: 0:00 - FMCW Radar Part 2 1:22 - Signal Generation 6:12 - Mixing (Frequency Subtracting) 12:05 - Signal Processing 19:08 - Wrap up / Next Video #manim #radar #fmcw #rf #electricalengineering #electronics