In sonar we have DELTIC delay line time compression. Auto correlation you can track a moving submarine with just two hydrophones. Used by CAPTOR smart mines in the late 70s. (Band limited white nosie from moving sub is XORed and accumulated). Way before the microprocessor was around.
Very nice video, worth watching! Small typo fix: the acronym FSK at 3:53 is Frequency Shift Keying, not keyring. Pull request sent via Github to fix it in the video.
Nice! I would say that at 5:40 "beat" is better described as the difference in frequency between two signals than as the difference in frequency of one signal at different times.
Yeah! This was a super basic intro to the technology so I didn't cover that, but yes there definitely is a gap many times - I included this in the caveats section of the description :) Thanks for watching!
@@imarshad thanks for the feedback, I should be posting another video tomorrow going into more depth on the implementation and I tried to slow down the complicated parts. Hopefully you get to watch and let me know if it’s more clear😊 thanks for watching!
@@RUDRARAKESHKUMARGOHIL yeah! This isn’t always the case (for example automotive radar sometimes) but you want to increase average output power because the signal you transmit degrades as it travels through the air. So if you transmit a higher power, you can see farther distances in general. Hope this helps and thanks for watching!
From a function point of view, what (on earth) is the significance of average power in a pulsed system. From a power consumption, and power stage heating side, pulses are only beneficial. The very origin of pulsed radar was that very fact: high signal strength from low average power without toasting the power stage. Without it, radar wouldn't have worked as early as it did!
Good point, and maybe I wasn't clear enough on this. One of the difficult things with pulsed radar is generating that high amount of power in such a short time. Especially generating it in resource constrained environments like a car is difficult. Thanks for watching!
@MarshallBrunerRF Boost converters and capacitors are "dime a dozen" components. The question is how best to utilise what average power is available. DO you pulse it, or somehow fix the problems with (relatively) low power. The problem being sensitivity and noise rejection in the receiver. For reference, I had a brief, in depth look at aviation radar altimiters. They use swept frequency mainly due to the simplicity of decoding the received signal in a pre digital era.
If we do diversify learning so far we may find that CWFM isn’t new. Such practice exists before our civilization by ocean wales. Try listen to their call navigating in deep ocean.
In sonar we have DELTIC delay line time compression. Auto correlation you can track a moving submarine with just two hydrophones. Used by CAPTOR smart mines in the late 70s. (Band limited white nosie from moving sub is XORed and accumulated). Way before the microprocessor was around.
@@jamesmorton7881 fascinating! I would love to learn more about sonar and its applications, but I know very little now
Very nice video, worth watching! Small typo fix: the acronym FSK at 3:53 is Frequency Shift Keying, not keyring. Pull request sent via Github to fix it in the video.
Hey! Thanks for the comment and PR! I actually have that in the errata in the description as well.
Very cool video! 1:48 That's also why pulsed lasers are able to to ablate material while being "only" 2W of average power
yeah I mean 2W at 10% duty cycle or less is quite a bit!
Great video on why chirps are perfect for radar. Keep it up, I'll watch anything you make.
Thank you so much!! New video tomorrow about the hardware and software implementation of FMCW radar :)
Nice! I would say that at 5:40 "beat" is better described as the difference in frequency between two signals than as the difference in frequency of one signal at different times.
Thanks for the suggestion! Definitely happy to take any and all constructive criticism as I want these to be really helpful. Thanks for watching!
Good explanation! Thx for sharing.
Glad you found it useful! Thanks so much for watching
this video is really helpful for me understanding FMCW
@@billourou4443 that means a ton!!!
Very good! I didn't know the technology. Many thanks!
Glad you enjoyed it!
Amazing video, thanks for putting it together! Please do more if u can!
Definitely! I'm working on the follow-up to this now! Thanks so much for watching!
So interesting! Thank you!
So glad you liked it! More coming soon :)
incredible video! the animations really did help at explaining the concept very clearly. This should have, at least, 100k views!|
@@miqueasgsw6818 thank you so much! Glad it helped 😊
Very well done explainer
Thanks so much!
That's great. I love radars, Your explanation was excellent and that's why I subscribed to your channel. Keep it up I'm looking forward.
@@majids8198 thanks for watching! Glad you liked it
Wow this is great! Please continue to make more! Subscribed.
@@reslofbeats thanks so much!
This is awsome. Nice work dude
@@TannerMageeYT heyyyy! Thanks so much! Excited for when you start making manim animation 😉
An amazing video. I really appreciate it.
Thanks so much for watching!
one of the better #some4 videos ive seen for sure!
@@bean_TM thanks so much for your comment and watching!
Great video !
@@LucaSpezzani-gz7no thanks!!
3:52 FSK is Frequency Shift Keying, not Keyring.
I included an errata in that video with this in it. Thanks for pointing it out!
beautiful ! . you earned a sub.
Glad to have you! Thanks for watching!
Awesome
> FMCW radars often also have some "off" time between chirps
That would not be FMCW, but FMOP.
Yeah! This was a super basic intro to the technology so I didn't cover that, but yes there definitely is a gap many times - I included this in the caveats section of the description :) Thanks for watching!
I think the “CW” in “FMCW” Is kinda funny. By this reasoning, any modulation is CW! 😂
It was super easy toll 5:30. I lost there... Maybe i will listen to it 3-4 times to get this portion.
@@imarshad thanks for the feedback, I should be posting another video tomorrow going into more depth on the implementation and I tried to slow down the complicated parts. Hopefully you get to watch and let me know if it’s more clear😊 thanks for watching!
can you explain at 1:53 why we want to have a greater desired power ?
@@RUDRARAKESHKUMARGOHIL yeah! This isn’t always the case (for example automotive radar sometimes) but you want to increase average output power because the signal you transmit degrades as it travels through the air. So if you transmit a higher power, you can see farther distances in general. Hope this helps and thanks for watching!
Ya it helped ! I left the video till the doubt get solved 😅 but will see it completely now...
From a function point of view, what (on earth) is the significance of average power in a pulsed system.
From a power consumption, and power stage heating side, pulses are only beneficial.
The very origin of pulsed radar was that very fact: high signal strength from low average power without toasting the power stage. Without it, radar wouldn't have worked as early as it did!
Good point, and maybe I wasn't clear enough on this. One of the difficult things with pulsed radar is generating that high amount of power in such a short time. Especially generating it in resource constrained environments like a car is difficult. Thanks for watching!
@MarshallBrunerRF Boost converters and capacitors are "dime a dozen" components.
The question is how best to utilise what average power is available.
DO you pulse it, or somehow fix the problems with (relatively) low power.
The problem being sensitivity and noise rejection in the receiver.
For reference, I had a brief, in depth look at aviation radar altimiters. They use swept frequency mainly due to the simplicity of decoding the received signal in a pre digital era.
If we do diversify learning so far we may find that CWFM isn’t new. Such practice exists before our civilization by ocean wales. Try listen to their call navigating in deep ocean.
Fascinating... will have to look into this
Great Explanation Sir. But try to explain in little bit slow....
Thanks for watching and providing feedback! Just to be clear, you thought it should be slower? What part did you think was too fast?
@@MarshallBrunerRFsir, I mean you are explaining very fast sonit will be better to us if you explains slowly
@@ankursvideos1210 thanks for the feedback!
When I have issues with speed I go into the settings and reduce the speed to 75% of normal. This works for me with out being too slow.
@Subgunman thanks
amazing video, can you design FMCW radar?
@@TuralMontin-w9k I’m actually currently working on a video going into many of the blocks used when designing an FMCW system!
@@MarshallBrunerRF thanks , I'm looking forward to it. I subscribed to you.