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Sounds like a great plan if you don't need a camera, positioning and magnetic compass. You also want your cage grounded or very thick, otherwise with sufficient
by varjag 1y ago
Sounds like a great plan if you don't need a camera, positioning and magnetic compass. You also want your cage grounded or very thick, otherwise with sufficiently strong field it will become preemable.
- pulse7 1y agoYou can put camera in transparent Faraday cage. With camera and gyro one can do basic positioning...
- XorNot 1y agoBasic yes, but drones are precision strike weapons by necessity: they can't carry enough payload to kill everything in a 50m radius for example. They depend on generally nailing a single target with cm-level precision. And all that stuff is a new supply chain and more weight which isn't payload. That a countermeasure can be built doesn't mean it's necessarily effective to do so - your drones get less cheap, less numerous, you have to incorporate such systems into tactical and strategic planning.
- imtringued 1y agoAlso you can't buy the drones off AliExpress anymore. This shouldn't be underestimated, because all the drone swarm wet dreams were built on this.
- ReptileMan 1y ago>payload to kill everything in a 50m radius for example. cluster heads solve this beautifully because 1kg of high explosive kills everything good enough in 5 meters radius.
- XorNot 1y agoWhich is still nothing in terms of area lethality terms. For comparison, the Excalibur GPS guided artillery shell was considered precision because it would hit within 5m reliably. Compare to the lethal range of a 155mm, where the kill radius is 50m and casualty at 100m.
- ReptileMan 1y ago155mm has payload of around 7kg.
- themgt 1y agoYou're talking about a counterdrone system that's at technology demonstrator stage. I don't think they even have any contract or timeline for delivering production systems. Meanwhile tech used in the Ukraine war is adapting by the month. "That a countermeasure can be built doesn't mean it's necessarily effective to do so" applies especially to reading a corporate press release about a system doesn't even have a timeline for being on the battlefield.
- Animats 1y agoMore than basic. DJI offers full GPS-less camera and accelerometer based nav technology on their drones.
- KK7NIL 1y agoA compass is not blocked by a Faraday cage as low frequency magnetic fields still get through.
- varjag 1y agoI was thinking a ferrous shield would warp magnetic flux lines but I could be wrong. And guess you could mill the enclosure from brass, tho it's still not clear how would you get an RF ground up there.
- KK7NIL 1y ago> ferrous shield would warp magnetic flux lines It wouldn't, the only way to "shield" from magnetic fields is to get them to induce Eddy currents and but that requires more and more length and as the wavelength gets longer and essentially infinite for the Earth's field which is very slow moving. > RF ground up there. "ground" is relative and not at all required for a Faraday cage to work.
- spwa4 1y agoHowever that is still vulnerable to the microwaves. The issue is that this setup catches microwaves and while, yes, it prevents the waves from entering the electronics it does so by converting them to heat. So if this cage has caught 100J * volume (say 100W for slightly over 1.5 minutes), the electronics are above 100 degrees, and the solder joints are releasing. The advantage of microwaves is that unlike lasers, kilowatt strong microwaves are easy to generate, it is an incredibly well studied problem, because that's how early radar systems worked. They are what secured the skies above London against the Nazi air force. Israel seems to be trying another approach with lasers. They decided it doesn't matter if the laser is powerful, if you just have hundreds of 2W lasers aimed at the same target.