Not gonna Lie. This is actually fascinating a really good, real life example of tech , physics & math in Practicality
it's pretty cool that a little diy radar is sensitive enough to detect a drone by the micro-doppler reflections of the drone's plastic rotors
Love these videos. I've never had the chance to study or play with radar, but having a background in electronics and maths it's still super easy to follow.
as someone who worked on radar for a short while, i am blown away with this project. i would be shocked if you're not snapped up by some defence contractor. or maybe that's how you got your knowledge? hehe
Just found your channel and I love the easily understandable, but still very technical style of explanation. This is super cool knowledge that I love having, thank you for teaching!
Great series it videos. I built a few FMCW back in grad school (1995) and we used YIG oscillators to get the bandwidth. Amazing that can be done in a couple of chip these days.
Best series on practical radar fundamentals around. Can't wait for season 2! It has been super helpful to take the Phaser from a bit of complex hardware to useful experimentation.
Ah, a fellow Terre Haute escapee. Congrats! I worked at ICTT in the 80s, and was on air at WMHD a few weeks.
Got hooked. Will watch the whole series now.
Many thanks! So interresting. Theorical papers are easy to found. It is easy to build basics doppler low cost radar. Here, I discover the power of array and chirp in doppler.
Looking forward to your phased array series, it is probably one of the coolest applications of signal processing, RF electronics and EM theory I know of!
Great Videos!!! Can't wait the phased array series.
I just discovered this channel, instantly subscribed. Thank you for making these educational videos, I now have a bit of a backlog to work through.
Turbine and propeller modulations are part of the radar target processing on Air Defense Radars. You can see Russian Bear bomber propellers at max Doppler range. The bomber itself needs to get closer before the Doppler tracker locks-on to it. But we also had pulse radar that saw the bombers if they were high enough (Beyond the Horizon) at twice the range of the Doppler radar.
This is such great work! Thank you so much for sharing!
This has been an excellent series. Great informative content in nicely sized episodes. Really look forward to the phased array series. Seeing additional vertical bars in "street demo" range vs. velocity plot at 3.75, 7.5 m/s either side of 0 m/s suggests 1/2 and 1/4 wavelength interference, or is it an artifact of the FFT? The street demo really brought all the pieces together. Can see a number of ways to modify parameters, and software to experiment in different ways. Thanks for sharing.
Can't wait for the beamforming application!!
The Pulse Doppler radars I worked on all had the closing velocities on the right of the clutter notch, and opening on the left.
Looking forward to the next video.
@bobbyshaftoe