What is FMCW Radar and why is it useful?

This video goes over range estimation with FMCW radar and gives a little insight into why you might want to use it over a traditional pulsed radar.
There are many more trade-offs between the two that I don't discuss here, but this should give you a basic understanding of the technology.
I'll use this as a basis for future videos on FMCW radar. There is a ton to cover and I'm excited to dive into those animations and explanations!
Who is this for?
Well, anyone interested in radar, but I did make a few assumptions about the viewer's background including a basic understanding of math and knowledge of what an electromagnetic wave is.
Some of the many resources I used when learning about this:
Jon Kraft's series on FMCW radar hardware and software (Analog Devices) ( / @jonkraft )
Small and short range radar systems (book) (www.amazon.com...)
The phaser FMCW radar platform (ez.analog.com/...)
Radar Basics: How to Build a 24 GHz FMCW Radar System - Alex Andrews (Analog Devices) (www.analog.com...)
Frequency-Modulated Continuous-Wave Radar (FMCW Radar) - radartutorial.eu (www.radartutor...)
Some of the caveats to the information presented in this video:
Pulsed radars often transmit more complex waveforms than a simple sine wave (e.g., pulse compression)
FMCW radars often also have some "off" time between chirps
FMCW radars will many times transmit a series of chirps then combine them in post-processing into a coherent processing interval (CPI)
See the next video on velocity estimation :)
Not all power is reflected from the target but it is instead scattered in many directions
All animations shown were created using Manim Community (docs.manim.com...) - a Python animation library written by 3Blue1Brown ( / @3blue1brown ) and maintained by the community. Huge thanks to everyone working on this incredible project!
Code for the animations can be found on my GitHub: github.com/bru....
Errata:
I probably should have labeled the time shift from transmission to reception as t_{shift} and not t_{0} for clarity and parity with the upcoming video on the hardware implementation.
"Keyring" should be "keying"
#somepi #manim