this post was submitted on 09 Mar 2024
368 points (94.0% liked)
Technology
59589 readers
3024 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I think that any war determined by who can churn out more low-end drones is going to be dominated by China, given their overwhelming share of the consumer market. Consumer drones are made there because China has comparative advantage.
That will only change if the basic methods of manufacture change, like, production is far more heavily automated. And even then, it's not clear to me that China has a disadvantage in industrial automation.
I think a more-interesting technology question is who has better counters to low-end drones. There, I can imagine room for a technological advantage. As things stand today, though, we really don't have a compelling answer, and we probably should have come up with one by now.
These flying IEDs can be defeated with some simple radio jamming. They will fall out of the sky without a remote control signal.
So, I haven't played with them, but even commercial, off-the-shelf DJI consumer drones have the ability to return to some location if they lose link, so they're gonna have at least GPS in there. You can jam that, but they've got accelerometers, and you can't jam that. They shouldn't drop out of the sky even if you can manage to jam things.
It looks like DJI drones have frequency-hopping spread spectrum support, too. So you have to jam all frequencies that they're using, since you don't know which they're using at any given instant. For consumer hardware, it probably doesn't matter much -- nobody is jamming you, so you sit in your little assigned piece of spectrum, have a handful of channels -- but in a war, you can probably expand the frequencies you use, use a huge chunk of the spectrum, if need be.
There are also some forms of jam resistance that AFAIK are not being exploited -- beam-forming or directional antennas.
Both Russia and Ukraine have a pretty strong interest in using electronic warfare against drones, and the fact that both are still using a lot of them seems like a pretty good argument that they can't currently successfully stop them via electronic warfare.
And even if you can jam signal when it gets really close to the target, if you have a second drone watching -- which it looks like Ukraine and Russia often are, from the videos I see, maybe to do damage assessment -- you can probably stick a laser designator on those, if they haven't already, use it to guide the weaponized drone in.
GPS jamming is widespread.