mmWave radar, you won't see it coming

Re:mmWave radar, you won't see it coming by hornej on Tuesday February 01, 2022 @09:07PM (#30172648)

I've been following and building mmWave radar stuff for a little over a year now and I wanted to write an intro to help anyone get up to speed on how it works, why it's special, and what's been happening in the space.

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Re:mmWave radar, you won't see it coming by mateo1 on Wednesday February 02, 2022 @07:12AM (#30176479)

Please write up how to make a simple passive detector so people can have a chance to know if they are being tracked.

This is going to be in every home in 10 years embedded in phones, TVs, smart speakers. All public venues. Trams, buses, subways. Everywhere. But most importantly homes. Every. Single. Person. 24/7. Breathing rate. Abnormal motions. Current location. Current activity.

Maybe, just maybe if we raise a some awareness we can curb the proliferation a bit.

Surely I can't be the only one who sees this as a nightmare.

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Re:mmWave radar, you won't see it coming by vasco on Wednesday February 02, 2022 @07:07PM (#30186303)

If it's going everywhere, making a detector won't be very useful. Perhaps a jammer / shield.

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Re:mmWave radar, you won't see it coming by nexuist on Wednesday February 02, 2022 @11:13AM (#30179534)

How is this any worse than smartphone tracking today? What does it matter if I buy technology that tracks me because I feel like it'd be useful to me?

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Re:mmWave radar, you won't see it coming by synthos on Wednesday February 02, 2022 @12:13AM (#30174003)

How is the power consumption?

Is it sensitive to noise or interference?

The VR headset application appeals to me. If headsets could be dumb terminals they would be a lot lighter and untethered wouldn't suffer from performance loss.

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Re:mmWave radar, you won't see it coming by hornej on Wednesday February 02, 2022 @12:24AM (#30174072)

Power consumption for radar can get down to around 0.5mW (edit)

But I imagine for 60GHz WiFi it's probably pretty power hungry.

At this point there's not much noise in the mmWave spectrum (it won't be competing with 2.4GHz and 5GHz anyways). And mmWave doesn't travel that far which is one of the main reasons the FCC unlicensed it in the first place.

Might be worth keeping an eye on UWB for AR/VR headsets https://www.embedded.com/wireless-transceivers-use-uwb-for-l...

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Re:mmWave radar, you won't see it coming by BenjiWiebe on Wednesday February 02, 2022 @09:46AM (#30178242)

Checking some point to point wireless radios and it doesn't look like 60Ghz needs much more power. Well, it might be a few times as much, but definitely the same order of magnitude.

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Re:mmWave radar, you won't see it coming by hooande on Wednesday February 02, 2022 @08:19AM (#30177081)

great article, I really appreciate it! sorry that the knuckleheads here got caught up on privacy instead of discussing this interesting technology

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