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Homemade 6 GHz pulse compression radar

hforsten.com

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Re: Homemade 6 GHz pulse compression radar

#2

Post by throwup238 »

This is great.

It’s the last piece I needed for my suburban missile guidance system! This will be the last year the Joneses survive the annual block party.

Can you do phased array radars next? I need the extra precision. There’s a few neighbors who don’t clean up after their dogs…

Re: Homemade 6 GHz pulse compression radar

#3

Post by vlovich123 »

Could this be adapted into a voxel system? Seems like it could be cheaper than LIDAR which are a huge cost for why the HW for self-driving systems are so expensive & work in far more environments that LIDARs struggle with. I suspect getting multiple directions simultaneously is hard?

Re: Homemade 6 GHz pulse compression radar

#6

Post by gertrunde »

throwup238 wrote: post #2

This is great. It’s the last piece I needed for my suburban missile guidance system! This will be the last year the Joneses survive the annual block party. Can you do phased array radars next? I need the extra precision. There’s a few neighbors who don’t clean up after their dogs…

There is this:

https://www.crowdsupply.com/krakenrf/krakensdr

(Although they had to take the radar elements out of the firmware/software, most likely due to ITAR - ref link: https://forum.krakenrf.com/t/where-has-the-passive-radar-cod... )

Re: Homemade 6 GHz pulse compression radar

#9

Post by itishappy »

vlovich123 wrote: post #3

Could this be adapted into a voxel system? Seems like it could be cheaper than LIDAR which are a huge cost for why the HW for self-driving systems are so expensive & work in far more environments that LIDARs struggle with. I suspect getting multiple directions simultaneously is hard?

Not without significantly complicating your antenna setup (and the data processing setup too). You guessed it, getting multiple directions simultaneously is hard. Note how the current system only detects distance and speed in 1 dimension.

Here's an analysis from someone smarter than me:

> To enable the new features, radar systems now use multiple input/multiple output (MIMO) antenna arrays for high-resolution mapping. Traditional radar systems usually contain two to three transmitting antennas and three to four receiving antennas, which lead to a beam providing limited short-range coverage and a narrow field of view unable to generate images. The limited angular resolution is insufficient to differentiate among vehicles, pedestrians, or objects that are close. The MIMO approach increases the underlying channels from only nine to anywhere between 128 and 2,000. Given radar’s significantly lower costs — even with all the enhanced technology — it’s easy to see how the two technologies will increasingly be on more equal footing.

https://www.oliverwyman.com/our-expertise/insights/2023/jul/...

Re: Homemade 6 GHz pulse compression radar

#10

Post by throwup238 »

gertrunde wrote: post #6
throwup238 wrote: post #2

This is great. It’s the last piece I needed for my suburban missile guidance system! This will be the last year the Joneses survive the annual block party. Can you do phased array radars next? I need the extra precision. There’s a few neighbors who don’t clean up after their dogs…

There is this: https://www.crowdsupply.com/krakenrf/krakensdr (Although they had to take the radar elements out of the firmware/software, most likely due to ITAR - ref link: https://forum.krakenrf.com/t/where-has-the-passive-radar-cod... )

Thank you for the link!

I totally forgot about kraken. I cloned their repo in November 2022, probably in anticipation of the ITAR hiccup. Hopefully the radar code is there.

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