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Jon Kraft
Registrace 9. 03. 2012
RadioKrafter is a channel primarily focused on simple examples and tutorials of software defined radio (SDR), phased array beamforming, RADAR, and Python. The goal for most of these videos is to demonstrate concepts and provide a "hello world" starting point for these subjects. But it is definitely not the only way, or even the best way, to do these things! Leave a comment with other suggestions or any issues you see. Let's all learn this together!
You can also follow my blog series on these topics here: ez.analog.com/tags/DIYRadio
Jon Kraft is a field applications engineer at Analog Devices. However, the thoughts/opinions/suggestions on this channel are his own, and not necessarily those of Analog Devices.
You can also follow my blog series on these topics here: ez.analog.com/tags/DIYRadio
Jon Kraft is a field applications engineer at Analog Devices. However, the thoughts/opinions/suggestions on this channel are his own, and not necessarily those of Analog Devices.
Drone Tracking Radar: Part 6 Range Doppler
This is the 6th video in the DIY radar project. In this video,
0:00 -- Introduction
0:26 -- Multiple FMCW Chirps
2:33 -- Range Doppler Plot
3:45 -- Python Program
4:22 -- Street Demo
6:59 -- Drone Radar Setup
7:30 -- Output Power Measurement
9:11 -- Drone Radar
9:55 -- Radar Data Cube
11:28 -- Future Videos
Please post all requests for technical support here:
ez.analog.com/adieducation/university-program/
Here are the links used in this video:
Phaser: wiki.analog.com/phaser
Radar Software: github.com/jonkraft/PhaserRadarLabs
CZcams Playlist: czcams.com/play/PLxC4LYGYcMqmPDEr8E8AlktQPcuHx4izm.html
Pluto and PYSDR-IIO getting started:
czcams.com/video/ph0Kv4SgSuI/video.html
0:00 -- Introduction
0:26 -- Multiple FMCW Chirps
2:33 -- Range Doppler Plot
3:45 -- Python Program
4:22 -- Street Demo
6:59 -- Drone Radar Setup
7:30 -- Output Power Measurement
9:11 -- Drone Radar
9:55 -- Radar Data Cube
11:28 -- Future Videos
Please post all requests for technical support here:
ez.analog.com/adieducation/university-program/
Here are the links used in this video:
Phaser: wiki.analog.com/phaser
Radar Software: github.com/jonkraft/PhaserRadarLabs
CZcams Playlist: czcams.com/play/PLxC4LYGYcMqmPDEr8E8AlktQPcuHx4izm.html
Pluto and PYSDR-IIO getting started:
czcams.com/video/ph0Kv4SgSuI/video.html
zhlédnutí: 26 787
Video
Drone Tracking Radar: Part 5 CFAR Targeting
zhlédnutí 9KPřed 2 měsíci
This is the 5th video in the DIY drone radar project. In this video, 0:00 Introduction 0:15 CFAR Processing 2:38 CFAR Demonstration 5:17 Conclusion and Future Videos Here are the links used in this video: Please post all requests for technical support here: ez.analog.com/adieducation/university-program/ Phaser: wiki.analog.com/phaser Radar Software: github.com/jonkraft/PhaserRadarLabs CZcams Pl...
Hands On Phased Array Workshops this May
zhlédnutí 3,6KPřed 3 měsíci
I want to invite everyone to the workshops we're doing at the IEEE Radar Conference. These workshops will take place from Saturday May 4 to Monday May 6 in Denver Colorado, USA. Info and registration links are below. The entire conference lasts until May 10, but the 4 events I will be involved with are: 1. Radar Boot Camp (May 4-5) 2. Hands On Phased Array Workshop (May 6, morning) 3. Hands On ...
Drone Tracking Radar: Part 4 Chirp Synchronization
zhlédnutí 10KPřed 3 měsíci
This is the 4th video in the DIY drone radar project. In this video, I'll introduce transmit to receive chirp synchronization to improve the beat frequency data. But this concept will be much more important on the final video where we do multi chirp range doppler plotting. 0:00 Introduction 0:55 FMCW Review 2:36 Non Ideal Linear Ramps 3:52 Start Ramps with TXDATA Signal 5:59 Modified Hardware S...
Drone Tracking Radar: Part 3 FMCW Radar
zhlédnutí 24KPřed 4 měsíci
This is the 3rd video in this series where I will show you how to build and program your own radar. At the end, we'll use it to locate a small drone. In this video, I explore the fundamentals of frequency modulated CW radar. We'll conclude with a demonstration and examination of the Python program to implement this. 0:00 Introduction 0:31 FMCW Radar Fundamentals 2:35 FMCW Equations 3:58 Stretch...
Build Your Own Drone Tracking Radar: Part 2 CW Radar
zhlédnutí 47KPřed 5 měsíci
This is the second video in a new 5 part series where I will show you how to build and program your own radar. At the end, we'll use it to locate a small drone. In this video, we'll explore the fundamentals of pulsed radar, and then continuous wave (CW) radar. We'll conclude with a demonstration and examination of the Python program to implement this. 0:00 Hardware Selection 2:44 Pulsed Radar 5...
Build Your Own Drone Tracking Radar: Part 1
zhlédnutí 465KPřed 5 měsíci
This is the first video in a new 5 part series where I will show you how to build and program your own radar. At the end, we'll use it to locate a small drone. Each video will start with basic radar concepts that I will first explain and then demonstrate. Over the course of the videos, the radar will grow until we have a more complete radar that can generate the classic range doppler plots. 0:0...
New Videos Update and IEEE Radar Challenge
zhlédnutí 1,7KPřed 7 měsíci
The first ever Analog Devices Mathworks IEEE Radar Challenge! Abstracts are due Oct 31, 2023. More info here: ez.analog.com/ez-blogs/b/engineerzone-spotlight/posts/join-the-analog-devices-ieee-radar-challenge 2024.ieee-radarconf.org/ieee-aess-radar-challenge Information about the Phaser kit: czcams.com/video/B66JHcZMq_Q/video.htmlsi=oO7flHjVfEAQhjkm www.analog.com/cn0566 wiki.analog.com/phaser
Introducing the "Phaser"!
zhlédnutí 11KPřed rokem
This is a short video to announce the introduction of "Phaser" 10 GHz phased array prototyping and exploration system. This is a complete kit that can be used for education and prototyping of various beamforming algorithms and radar systems. More information, and ordering, can be found here: www.analog.com/cn0566
Implementing Time Delay For a Low Cost Digital Beamformer
zhlédnutí 8KPřed rokem
This is the third video of the DIY Phased Array Beamformer using the ADALM-PLUTO. In previous videos, we've used phase shifting to form the beam. But in this video, we'll dig into why and how to use baseband digital time delays instead. The python files used in this video are found here: github.com/jonkraft/Pluto_Beamformer Part 1 of this series, and the best place to get started, is here: czca...
Monopulse Tracking with a Low Cost Pluto SDR
zhlédnutí 13KPřed rokem
This is the second video of the DIY Phased Array Beamformer using the ADALM0-PLUTO. In this video, we explore why we need monopulse tracking for our phased array. Then we discuss how it works, and finally we implement it with the setup that we built in Part 1 of this series. The conclusion is a monopulse tracking algorithm which finds an RF signal and locks onto it as it moves around. You can f...
Build Your Own Phased Array Beamformer
zhlédnutí 190KPřed rokem
In this video I'll walk you through a complete example of how to build your own low cost two channel digital beamformer. At the end, we'll use it to track a 2.3 GHz RF signal and display its direction of arrival. You can follow my blog series on this topic here: ez.analog.com/tags/DIYRadio The python files used in this video are found here: github.com/jonkraft/Pluto_Beamformer To build this you...
Tips and Tricks for using X-Microwave Prototyping Blocks
zhlédnutí 3,1KPřed rokem
My own personal tips and tricks for using the X-Microwave (www.x-microwave.com) RF prototyping system.
Rapid Phased Array prototyping with Analog Devices and X-Microwave
zhlédnutí 59KPřed 2 lety
How to get started with phased array beamforming rapid prototyping using the ADAR1000 and the X-Microwave phased array cube. RF blocks can be bolted together to quickly provide a complete solution from 8-16GHz. This video walks through the entire construction, including software library setup, and with a simple Python script to generate a 2D scan. Here's the links used in the video: czcams.com/...
Enable Dual Receive and Dual Transmit for the new revision of Pluto
zhlédnutí 22KPřed 2 lety
This video will walk you through how to enable the 2nd Rx and the 2nd Tx channel of the new revision of Pluto: Rev C. If you have Rev B, it won't work. You can only get the 2nd channels with Rev C or later. We'll go through 4 steps: 1. Update the firmware 2. Set the environmental variables 3. Add the u.FL to SMA connectors 4. Simple Python example Here's the links used in the video: wiki.analog...
FMCW radar with Pluto, the ADF4159, and GNU Radio
zhlédnutí 9KPřed 3 lety
FMCW radar with Pluto, the ADF4159, and GNU Radio
ADRV9002 unboxing with TES software and ZC706 FPGA
zhlédnutí 1,4KPřed 3 lety
ADRV9002 unboxing with TES software and ZC706 FPGA
Phased Array Comms Example with Beam Steering and EVM Measurements
zhlédnutí 2,1KPřed 4 lety
Phased Array Comms Example with Beam Steering and EVM Measurements
X Band Monopulse Tracker running in GNU Radio
zhlédnutí 1,8KPřed 4 lety
X Band Monopulse Tracker running in GNU Radio
X Band Monopulse Tracker Construction with X Microwave Blocks
zhlédnutí 4,3KPřed 4 lety
X Band Monopulse Tracker Construction with X Microwave Blocks
Hi thanks for the show. Is FMCW less prone to jamming and RF interference ? And will you show references to bearings in degrees of the tracked object without relying on GPS maybe via triangulation of 3 mobile radar units in different locations? Finally would a large Collinear Array sharpen the received image in the field? Thanks mate. Andrew Nz
So cool. I wish i could afford the parts to build my own
This may sound like an insane question, but is there radar sensitive enough to both detect a mosquito at relatively near distance, but positively identify it due to counting the microdoppler of its wings beating at a certain hertz?
Got hooked. Will watch the whole series now.
Yeah. Let's low key help Ruzzians right now. Great job... -.-
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.
Can Starlink hardware be converted/hacked into a radar? After all, it is already a 2d scanning phase array... maybe it can be hacked into working at different frequency than original Starlink system?
10 seconds and I subscribed.
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!
I love this wow. The algorithm works in my favor. Sub.
thanks for your time and effort
Only read the title. 1st thought, "DON'T TELL THE RUSSIANS!"
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
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.
This series is awesome!
It's too expensive. Why can't I use a starlink for this?
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.
Great video!
This is really amazing! Thanks a lot!
Great series! Is this phased array radar limited to 40 meters range? What is needed to detect range and speed of an object at 400 meters or more?
Thanks! Assuming you mean improve range to 400m to see this small 249g drone. Two things need to be improved: improve the hardware and improve the signal processing. Hardware can be improved via that range equation from the first video. i.e. more Tx power, more directive antennas, etc. Signal processing is things like MTI, clutter suppression, integrating pulses, etc. Lots could be done on both of those ends. I'm just showing the concepts and a minimum working example. It would take non-trivial work on both hardware and software to get a reliable target at 400m.
@@jonkraft Thanks for the reply. Your videos are popular both among my friends in FAANG and miltech developers in Ukraine making all kinds of stuff including phased array radars. Drones are a serious issue as you may know. And it is getting worse with addition of machine vision. I'm mean not only here, it is a global security issue. Personally I'm building an acoustic array to help defend our skies and more or less know its possibilities from simulations and early prototypes. Hope to finish a full scale prototype this summer and try it out on a test ground to help counter Iranian suicide drones Shaheds. Good luck with your series!
does the same concept apply to terrahertz imaging only much higher freq?
Can I synchronize a few cheap SDRs with some external clock, to extend the antenna array without selling a kidney?
see the Kraken SDR
Mimicking is easy. What books should I read, to properly un derstand that, and be able to tweak and adjust as I want? Antennas, amplifiers, dsp,...
Can't wait for the beamforming application!!
So you have nine bins on the Fast Time axis, separated by the sampling rate of the data convertor, something like microseconds. Is there one ADC reading in each bin? 8 bins is enough for an FFT, but do you really have a lot more?
Right, with modern data converters its very easy to get thousands of samples. I think this data was a couple thousand complex (IQ) data points per chirp.
Is it possible to use the radar to calculate the rotation speed of the propellers of the drone?
Well coming from several years in Turkey we used A variable-focus feed horn that provided a wide beam for detection and a narrow beamwidth for tracking. . . Pulse compression was used to improve both the gain and resolution of the 35-foot (11 m) dish antenna. Steering was mechanical; the FPS-79 had a range of 24,000 miles (39,000 km). The radar site closed in 1997, but We on base were referred to as "Space Trackers" Loved the Tech back then. You have done an excellent job of explaining and back then We would have never envisioned what you made possible... WELL DONE man! Looking forward to more. en.wikipedia.org/wiki/United_States_Space_Surveillance_Network#AN/FPS-79
Okay but your not measuring the actual Dopplershift right? Or am I missing something. And if that's true why is it then still called Doppler when it would be more accurate to say radial velocity.
In an earlier part of the series, it was suggested that pauses in the frequency modulation ramp, where the frequency is held constant, would be good places to look for Doppler shifts. If the picture at 0:51 is correct, this wasn't done. I guess if things work out, you could have two beat frequencies: one for Doppler at a particular frequency and one for the range.
@@johnschindler9641 ah okay thanks, didn't remember that part.
Love you videos. Thanks for sharing!
fantastic explanation
thanks very very cool work is that the range ? 40m for a bigger target say 10x bigger, of size 200cm, how far out should you be able to see it on top of the noise, and will the speed of the target effect its radar profile ?
Very very interesting!
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
Not gonna Lie. _This is actually fascinating_ a really good, real life example of tech , physics & math in *Practicality*
I'm very you are doing well with this extremely niche kind of subject.
This is begging for neural network processing in order to identify signatures.
Amazing thanks!
how many ukrainians are watching this
None, they are busy stealing us and European Technology
as much as russians
Na, it's the Americans Germans French and ***'s that are constructing the devices and conducting the experiments. The ukrainians and russians are just the testing medium
Ukraine is a corrupt hole
@@vihtormch7512true)
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.
Ah, a fellow Terre Haute escapee. Congrats! I worked at ICTT in the 80s, and was on air at WMHD a few weeks.
Excellent work
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!
Is it possible to use this solution to hunt drones (e.g. intercept) in the air? All the types of drones - FPV, Shakhed and the reconnaissance ones.
Great Videos!!! Can't wait the phased array series.
Wow! Thanks!
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.
This is such great work! Thank you so much for sharing!
this is amazing.. tyvm
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nice work