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Lithuanian startup launches open-source network to detect Shahed-type drones

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Re: Lithuanian startup launches open-source network to detect Shahed-type drones

#91

Post by dzhiurgis »

MiracleRabbit wrote: post #30
customguy wrote: post #27

Earlier quoted context omitted.

> Use one differential side and connect it to a kitchen funnel for directional listening the other one to a plastic bottle with a very very small hole in it. It will pick up everything high frequency that's different to the environmental pressure. Nevermind drones, and war, that's all fine; but I need to know more about this. Is there a phrase or name for this I could use to find more information, maybe example schem…

The Sensirion SDP600-25Pa speaks I2C and only has a handful of primitive commands. Add this and 3.3V and you are done. I'm 99.5% sure if you throw Claude with a datasheet on it will Slop out working code for a ESP32 with ESP-IDF.

Someone did something very similar already https://www.holad.de/2023/02/05/Infraschallmikrofon-Messunge...

Re: Lithuanian startup launches open-source network to detect Shahed-type drones

#93

Post by celsoazevedo »

dzhiurgis wrote: post #90
celsoazevedo wrote: post #63

Earlier quoted context omitted.

I don't follow American politics that closely, but here in Europe, I don't remember ever seeing Merkel doing this: - https://i.haasie.com/KeO.mp4 Can you please provide videos of them doing the same gesture?

Took me 15 seconds to find https://sempreentreviagens.com/2012/11/merkel-em-lisboa/

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Re: Lithuanian startup launches open-source network to detect Shahed-type drones

#94

Post by tpolm »

embedding-shape wrote: post #4
tpolm wrote: post #3

I wonder how this system can be protected from spam - if anyone can send data there, enemy can, too

I feel like if/once they reach the number of expected participants (10k), it'd be easy to filter out the spam as long as the majority are truthful.

So what prevents enemy from creating 20knparticipants constantly sending fake data?

Re: Lithuanian startup launches open-source network to detect Shahed-type drones

#96

Post by ivandenysov »

dghlsakjg wrote: post #42
tristanj wrote: post #6

Shahed drones have increased in altitude from ~500m at the beginning of the Ukraine war to 2000-3000m, which is a 4x reduction in noise on the ground. The higher the drones are, the less noise they make at ground level, and the less effective this ground-based microphone system will be. The drones have moved to elevations to make them more difficult to target with ground based weapons. Reductions in ground noise are…

At those higher altitudes they are trivial for radar to detect, and from farther away too. They are adapting cheap commodity used marine radars to get this done in some places I suspect the Shaheds are going higher to mitigate AA ground fire. Higher up you have to send a missile or interceptor up. It’s a trade off.

Ukrainian P1-Sun interceptor FPVs were built specifically for this purpose. They are way cheaper than a Shaheed drone and have a practical ceiling of 5000+ meters according to wikipedia.

https://uk.wikipedia.org/wiki/P1-Sun

Re: Lithuanian startup launches open-source network to detect Shahed-type drones

#97

Post by LtWorf »

af78 wrote: post #75
energy123 wrote: post #66

Earlier quoted context omitted.

A $100k interceptor to save a $10 million critical facility against a $10k Shahed is a bargain. You saved $9.9 million dollars. Interceptor economics makes more sense when you reason about the bigger picture. The point is to buy you time to remove the supply chain and the stocks so that you're not trading 1:1 forever. It's a stop-gap, or at least it's supposed to be. However that only works in a war where you have ai…

With interceptors that cost the defender $100k/unit and shaheds that cost the attacker $10k/unit, over time the attacker can bankrupt the defender if the target is something the defender cannot afford to lose. Sometimes it takes several interceptors to eliminate the threat. Therefore part of the focus in the design of interceptors is to keep their unit cost low. The unit cost of the first versions of shaheds may have…

No worries, europe will print money to subsidise ukraine forever.

Re: Lithuanian startup launches open-source network to detect Shahed-type drones

#98

Post by LtWorf »

warumdarum wrote: post #12
tristanj wrote: post #6

Shahed drones have increased in altitude from ~500m at the beginning of the Ukraine war to 2000-3000m, which is a 4x reduction in noise on the ground. The higher the drones are, the less noise they make at ground level, and the less effective this ground-based microphone system will be. The drones have moved to elevations to make them more difficult to target with ground based weapons. Reductions in ground noise are…

So film the sky during charging and run a llm on it?

Language models are terrible at computer vision. I don't know why you think that a software to generate words would be able to see flying objects in a picture.

Re: Lithuanian startup launches open-source network to detect Shahed-type drones

#99

Post by burnerRhodov3 »

brookst wrote: post #46
nefarious_ends wrote: post #20

Earlier quoted context omitted.

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Why is the american taxpayer funding healthcare clinics in 100's of countrys when we don't have free healthcare here in America?

>"Such intentions have been damaging our continent for the past 40 years. If the industrial nations really want to help the Africans, they should finally terminate this awful aid... Development aid weakens the local markets everywhere and dampens the spirit of entrepreneurship that we so desperately need."

>"When there's a drought in a region of Kenya, our corrupt politicians reflexively cry out for more help... Another portion of the shipment ends up on the black market where the corn is dumped at extremely low prices. Local farmers may as well put down their hoes right away; no one can compete with the UN's World Food Program. And because the farmers go under in the face of this pressure, Kenya would have no reserves to draw on if there actually were a famine next year. It's a simple but fatal cycle."

Re: Lithuanian startup launches open-source network to detect Shahed-type drones

#100

Post by celsoazevedo »

dzhiurgis wrote: post #95
celsoazevedo wrote: post #93

Earlier quoted context omitted.

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You made a claim. I've asked you to back up your claim with a video. You can't.

The reason for this is easy: Merkel, and I'd be willing to bet the others you've mentioned too, haven't done the same as Musk.

You lied, made it up. The thing is, you're not on Twitter/X, people here can also perform 15-second searches and dismiss bs claims just as fast, so please don't do that. Not only makes you look bad, but it's also weird doing it for some random famous person that doesn't even know you exist.

On a side note, I don't know what annoys me more. The sieg hail itself or grown up people not owning up to what they did and lacking the balls to stand by their views.

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