Killer drones pioneered in Ukraine are the weapons of the future
Killer drones pioneered in Ukraine are the weapons of the future
They are reshaping the balance between humans and technology in war
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Drones currently outpace their countermeasurs. This will definitely not be a thing forever. I think the effectiveness of cheap drones will go down as be countermeasures are invented.
We already see new very effective military drone jammers starting to come out
Onboard AI guidance is not difficult.
Yes it is.
Both of you are right.
It's difficult, but how difficult depends on the task you set. If the task is "maintain manually initiated target lock on a clearly defined object on an empty field, despite the communications link breaking for 10 seconds" -> it is "give a team of coders half a year" difficult. It's been solved before, the solution just needs re-inventing and porting to a different platform.
If it's "identify whether an object is military, whether it is frienly or hostile, consider if it's worth attacking, and attack a camouflaged target in a dense forest", then it's currently not worth trying.
That was a good guess but unfortunately it is just difficult even in the scenario you proposed
Realtime person detection and following it with a drone? Difficult for me, certainly, but there are enough people out there who have done it.
I will be very suprised if this isn't already happening.
It's one thing detecting a person with machine learning in a test and an actual soldier with camouflage in a very imperfect environment. Also good luck telling friend from foe from civilian.
This has all sorts of problems while making the whole system more complicated and prone to issues. Not the mention moral questions of autonomous weapons. I have no doubt it will happen but not yet, not here.
Why would the drone differentiate an armed person from a civilian? I mean, you’ll be asking to separate out children next, at that rate!
I know it already does, at least in newer Lancets. Expect this in fpv type devices soon.
You can't be serious.
Tracking a moving object in realtime with video is a standard task for a machine learning engineer. You can do it on an embedded platform with ML hardware support. I don't know what hardware newer Lancets use but they can already do it according from developer reports from Telegram channels like e.g Разработчик БПЛА.
Honestly, I was just objecting to the use of "AI". We've had both fire and forget and loitering munitions for decades now, neither of which use ML. Will it happen? Sure. For now, ML/AI is too unreliable to be trusted in a deployed direct attack platform, and we dont have computing hardware powerful enough to run ML models that we can jam in a missile.
(Though yeah we run tons of models against drone data feeds, none of those are done onboard...)
For now, ML/AI is too unreliable to be trusted in a deployed direct attack platform
And probably can't ever be trusted. That "hallucinations can't ever be ruled out" result is for language models but should probably apply to vision, too. In any case researchers made cars see things and AFAIU they didn't even have to attack the model they simply confused the radar. Militaries are probably way better at that than anything that's out in the open, they've been doing ECM for ages and of course never tell anyone how any of it works.
That doesn't mean that ML can't be used, though, you can have additional non-ML mission parameters such as the drone only acquiring targets over enemy territory. Or that the AI is merely the gunner, there's still a human commander.
The point of modern deep learning approaches is that they're extremely easy on the developer skill. Decades ago realtime machine vision needed a machine vision expert, these days you throw the hardware at the problem at learning stage, and embedded devices to run the results are stupidly powerful (doesn't even take a Jetson board), if you compare to what has been available even a decade ago.
A combination of GPS, or even inertial based guidance to get them to the target area and then some simple vehicle / object identification, I'd think those are possible.
GPS is usually the first thing to be jammed in the battlefield.
GPS is useful, but not required for operation. Inertial guidance, and ground tracking cameras can easily maintain a good position sense, while completely RF passive. This is also already normal on many toy drones.
You would also want to jam it over a large area. That jamming is akin to a "kick me" sign, in neon lights.
Inertial guidance sucks balls for any meaningful amount of time. Combining it with ground tracking gets it a lot better, if you have good time of flight sensors to measure the distance from the ground. But this also falls flat on its face when the ground is too uniform (grassland, wetland, snow etc).
Edit, apparently I'm an idiot and my ability to tell truth from fiction is a lot worse than I thought.
In my defence however, all the parts are completely viable. I also saw it mixed in with Boston dynamics videos.
I'll leave the original comment for context of my folly.
The US already has them.
There are single shot drones, designed to be deployed into a building, or cave system. They then use cameras etc to navigate, while running face recognition. When they find their target, they fly just in front of it. The shaped C4 charge is designed to reduce their head to red mist, while not risking those close by.
AI + cheap drones will completely change warfare. Probably on the same level as the tank, or machine gun.
The US already has them.
Do you have a source for this? These sound uncannily close to the Slaughterbots short film...
I'll try and remember to dig it out later. It was a sales demo from a weapon's company. I can't remember exactly which one it was, but the implications scared the shit out of me.
Are you certain you're not thinking of the Sci-Fi Short Film "Slaughterbots"? The plot is almost exactly what you describe.
Apparently I'm an idiot. I saw a modified version, mixed in amongst other legit videos.
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Imagine when they are long range and readily available. Any old despot could load on a rough GPS location and a face. Deniable foreign assassination becomes easy.
You can't be very knowledgeable on the topic.
I am, in fact, fairly well versed in the topic. You're 30+ years away from being able to fit hardware powerful enough to run a ML model into a missle, though I cant see a single reason you'd ever want to. Look into the declassified, 40+ year old design paradigms for missiles or other self-guided munitions and it'll start to give you an idea of why the idea of "AI" guidance is so laughably stupid. There's so very many reasons we use FPGAs, none of which are compatible with AI.
I saw a YouTube clip explaining that they use a secondary drone to boost the signal to get around some of the jamming.
The game of cat and mouse continues.
The only reliable counter to a drone is likely another drone.
I suspect Peter F Hamilton got it close, in the Confederation series, with WASPs. They are space based weapon platforms. They carry a mix of offensive and defensive subsystems, and operate with swarm logic.
I could easily see a larger drone carrying a swarm of 1 shot micro drones. When close, some would be sacrificed to get better sensor data, others would go on the attack. Conversely, a defensive target would launch their own swarm. It's goal would be to stop the attackers getting a good shot on a high value target. It might also counterattack, either against the mother ship drone, or backtracking to find the launch site.
Jamming would also be part of this. A jammer could easily cut off the swarm from external data sources. Live satellite or remote surveillance systems would be cut. Point to point lasers are far harder, as are burst transmissions. Local sensor drones could easily punch short range data back, or paint targets, until they are destroyed by defensive systems.
https://www.youtube.com/watch?v=rr7ym1zkda8
Anti-air guns are the countermeasure. RADAR good enough to detect drones + an aimbot and programmable air-burst round to "shotgun" your pellets to damage those soft plastic bits.
We're going back to WW2 tech. AA guns were considered obsolete because Helicopters + Missiles had more range. But now we need to build cheaper AA Guns for the anti-drone role.
AA Guns are also useful vs infantry, so in an infantry vs infantry fight, having an AA Gun platform will be useful even without any drones around. Airburst and rapid fire is always useful, and I expect the computers that make RADAR possible will be far cheaper today than decades past.
They may both have a role.
If you know that a given point is at risk of attack, using a static defense like AA guns is practical. Say you have some sort of specific, high-value target that you can put AA guns around. That may be a very sensible thing to do.
But the problem, if you intend to rely only on those, is that there is then a concentration of force issue. The attacker can choose which point to attack; they get the initiative.
Say you're trying to defend against something like a Shahed-136. It can hit pretty much anywhere in Ukraine. You can't stick an AA gun on everything that Russia might consider trading a Shahed-136 for.
But, okay, say you try to go big with static defenses. Let's say that you can obtain and pony up the resources to hypothetically stick an AA gun at every single point along the front line and border, and that your AA gun has the altitude to hit a drone. You have an unbroken line of engagement envelope all around a country. That'd be an extraordinary expenditure, but it could hypothetically be done. So a drone has to fly through defended airspace. The problem is that if the other guy expends an equivalent amount of resources, he can buy a shit-ton of drones and fly them all through a single gun's engagement envelope. Even if he doesn't even bother to try to attack the antiaircraft gun, your gun defenses are just going to get overwhelmed, because all of the attacker's resources are engaged, whereas the vast bulk of the defender's resources are not in the fight. Maybe you hit a tiny percentage of drones, but the rest are going to be able to simply fly through.
The problem is that the cost of static defenses in that scenario grows at something like the square of the scale of the air conflict -- you have to have enough static defenses to counter all of the attacker's aircraft, and pre-place those defenses at all points that might be attacked, whereas the cost of the attack grows only linearly. It's cost-effective to use static defenses only if the attacker is compelled to attack a limited number of points.
If that's not the case, then using some form of mobile defense is more important -- say, I don't know, you have a fleet of gun-armed, jet-powered counter-UAS UASes. Dollar-for-dollar, they might not be as effective as a static gun. But...you can route most or all of them in to meet any given attack.
The spot where we intend to fight must not be made known; for then the enemy will have to prepare against a possible attack at several different points; and his forces being thus distributed in many directions, the numbers we shall have to face at any given point will be proportionately few.
For should the enemy strengthen his van, he will weaken his rear; should he strengthen his rear, he will weaken his van; should he strengthen his left, he will weaken his right; should he strengthen his right, he will weaken his left. If he sends reinforcements everywhere, he will everywhere be weak.
Numerical weakness comes from having to prepare against possible attacks; numerical strength, from compelling our adversary to make these preparations against us.
Knowing the place and the time of the coming battle, we may concentrate from the greatest distances in order to fight.
But if neither time nor place be known, then the left wing will be impotent to succor the right, the right equally impotent to succor the left, the van unable to relieve the rear, or the rear to support the van. How much more so if the furthest portions of the army are anything under a hundred LI apart, and even the nearest are separated by several LI!
-- Sun Tzu, The Art of War, ~400 BC
Say you’re trying to defend against something like a Shahed-136. It can hit pretty much anywhere in Ukraine. You can’t stick an AA gun on everything that Russia might consider trading a Shahed-136 for.
As far as I know, the routine in the current war is - the AA gun is on a truck that moves 80 km/h, the drone comes in slower than 300 km/h, one or multiple truck crews position themselves on likely vantage points for intercepting, and the rest is luck.
If you know that a given point is at risk of attack, using a static defense like AA guns is practical. Say you have some sort of specific, high-value target that you can put AA guns around. That may be a very sensible thing to do.
Did you see the Youtube link?
This is a lightweight AA Gun that can be mounted on a cheap pickup truck. This isn't a "Static" defense, this system is more mobile than infantry. It will move with the infantry, it will protect the infantry, and the infantry will protect it.
Say you’re trying to defend against something like a Shahed-136. It can hit pretty much anywhere in Ukraine. You can’t stick an AA gun on everything that Russia might consider trading a Shahed-136 for.
But you can have an AA Gun on a Pickup truck follow your infantry around, protecting that company. If you have 100 men out on the field, it makes sense to give them at least one AA Gun to protect themselves against a wide variety of drone threats. Or if one AA gun per 100-men is too expensive, then maybe per battalion (~500 men). Etc. etc.
If the enemy drone is moving less than 200mph, the cheaper AA Gun will reliably protect the troops, as long as the person watching the RADAR doesn't fall asleep. And at 115mph, even a Shahed is slow enough that AA Guns reliably work. Most drones are far slower than that.
If that’s not the case, then using some form of mobile defense is more important – say, I don’t know, you have a fleet of gun-armed, jet-powered counter-UAS UASes. Dollar-for-dollar, they might not be as effective as a static gun. But…you can route most or all of them in to meet any given attack.
That's called an F22 Air Superiority Fighter.
Yeah, that'd be nice, but I'm assuming those are off the table for obvious reasons.
The problem is that if the other guy expends an equivalent amount of resources, he can buy a shit-ton of drones and fly them all through a single gun’s engagement envelope. Even if he doesn’t even bother to try to attack the antiaircraft gun, your gun defenses are just going to get overwhelmed, because all of the attacker’s resources are engaged, whereas the vast bulk of the defender’s resources are not in the fight. Maybe you hit a tiny percentage of drones, but the rest are going to be able to simply fly through.
Lets start with basic problems first. How can a battalion survive a typical onslaught of Russian drones?
Well, anti-air guns. Bam. We work our way up as the more important, lower-level problems get solved. I know people are talking F16s now, so maybe we're at the point where fighter jets are the next step forward.
No one is going to shoot at a cheap AA Gun (like the "MACE" system) with hundreds of drones: the hundreds of drones will mostly get shot down and ultimately the price wouldn't be worth it. Bullets are far cheaper than drones after-all. Now whether a particular MACE will try to shoot down high-flying drones like Shahed is another question, but its also just another problem all together.
MACE's job is to protect the infantry inside of its shield. And its highly effective at that.
This is a lightweight AA Gun that can be mounted on a cheap pickup truck. This isn’t a “Static” defense,
It's static from the standpoint of being required to meet an incoming Shahed-136, which can move more quickly than it; you cannot substantially reposition vehicles on ground-based vehicles to meet incoming attacks from the air. The critical factor is whether you can concentrate your defenses in time to meet an attack, once you have detected that incoming attack.
The critical factor is whether you can concentrate your defenses in time to meet an attack, once you have detected that incoming attack.
Force concentration is a job for fighter jets. Most jets can fly at Mach 1, or even Mach2 (700mph to 1500mph). At which point, a 120mph Shahed-136 is basically standing still.
Different weapons for different tasks. The AA Gun is cheap and meant to be widely deployed across the whole frontline. Infantry could use them against other infantry (30mm airbursts will still wreck enemy infantry), and also rely upon those guns to protect themselves vs enemy drones.
Different weapons for different tasks.
I think that we may be violently agreeing. What I had in my original comment:
They may both have a role.
If you know that a given point is at risk of attack, using a static defense like AA guns is practical. Say you have some sort of specific, high-value target that you can put AA guns around. That may be a very sensible thing to do.
But the problem, if you intend to rely only on those, is that there is then a concentration of force issue. The attacker can choose which point to attack; they get the initiative.
I guess I read it differently earlier.
The game will iterate further. A machine gun works against current drones. It can be countered however. E.g. use a ducted drone, with a few layers of Kevlar facing the gun. It doesn't need to win, or even survive. It just needs to soak up the fire. The other drones rush in, either behind it, or from various angles.
Even things like chaff and smoke can mess up targeting for long enough to rush in.
You can't armor up a helicopter, and these drones are mostly quadcopters.
I've never heard of Kevlar stopping a 30mm round before either. Note that a 50cal is 12.7mm bulltet. A 30mm bullet is considered a cannon an an effective 118 caliber weapon.
50cal is well beyond the size where Kevlar is useful, let alone a 118 caliber airburst round. You need thick steel or Aluminum plates and a drone can't carry that kind of armor.
Smokescreens work on the ground where terrain can provide hiding. I've never heard of an air platform using a smoke screen.
Maybe a flare to draw fire / RADAR, but quadcopters move too fast and cover too much ground for smoke to be useful to obscure sight. AA guns engage at about 3mi or 5km away, who cares about a few meters of smoke?
If it fires big, heavy rounds, then they are slow and of limited numbers. You then bait it at range, or swarm it. If it uses lighter round, to get higher speeds, or more shots, then you use a different platform to soak its shots.
You're also likely vastly overestimating the final engagement ranges.Right now its long flights at relatively high altitudes. A properly designed drone swarm could hug terrain to close, or be deployed early and loiter on the ground in cover.
A good chunk of the swarm would also be small. 10cm would be big enough to carry just enough teeth to not be ignored. They would also be nimble as hell. It would be a numbers game.
As for the use of smoke. You use 3 or 4 types of drone. A smoke bomb lays down cover. Camera drones fly through and around it to triangulate on your gun. Finally a sniper platform drone moves out of cover and shoots blind, using the camera drones feeds. A coordinator might be required to sort the data. Critically, only cheap, disposable drones are exposed to fire.
The key is that you can mix and match drones on the offensive. Your defence needs to be able to react to all of them.
Common 30mm systems carry 700+ rounds and fire 10 per second.
So no on both cases. As I said, gun and bullets are the answer.
Note that these are programmable airburst rounds, meaning the system is self-exploding once it hits the desired range. It wouldn't take more than 5 shots to blanket the area of a smokescreen.
There is no mix and match here. You have yet to describe a system that can handle a typical 30mm gun, let alone two or four of them working as a team.
The actual teammate is a helicopter. The anti-helicopter is a stinger missile. Etc. Etc. And so the war games continue. But I see no role for your hypothetical drone swarm.
By the time you have enough drones to saturate a freaking machine cannon on aimbot that modern AA guns are, I'll add a 2nd or 3rd gun as a teammate. Bullets and AA guns are pretty cheap.
Drones can't effectively fire rifles because of physics. Sorry, just not stable enough. 30mm guns weigh a half ton, easy for ground equipment to move and is why 30mm systems can fire for 3mi out.
Any small gun you put on a drone won't have the range, stability, or accuracy of a ground based autocannon. You need to upgrade all the way to a CAS system like A10 before you compete, but missiles have negated that role on the modern battlefield.
And missiles don't need a drone to launch.
3mi range is distance to horizon on the ground btw. No drone can fly lower than the ground. Any amount of elevation means more range on the AA gun.
Gun drones are perfectly viable. They just can't fire well while flying. (At least not more than 1 shot) The current prototypes have to land and anchor themselves. They are currently machine guns, for area suppression, though anti-material would be viable.
The gun drone is also not in the smoke cloud, it's behind it. The smoke, chaff, strobes etc are just to break the ability to counter target it. You don't need to just saturate the cloud, but the whole area behind it.
As for the smoke, it's not 1 cloud. A drone's advantage is hyper mobility. A swarm would easily attack from multiple directions. Your gun is now required to saturate multiple clouds at multiple angles. 1 might be hiding something nasty, or 2 or none. Smoke (or chaff etc) drones would be dirt cheap, as would simple distraction drones.
To fight it, you would either need to put up a wall of shrapnel, which would quickly deplete a mobile weapon, or get accurate targeting data. Both could be viable, depending on the situation, but it's risky.
As for engagement ranges. A drone swarm would be cut down by advancing over a large open area. I fully agree on that. It would also struggle engaging fixed defences. That changes in a city, or forest, or mountainous area. A patrol or convoy could be encircled by a swarm in seconds, engaging from multiple sides simultaneously.
Your gun can fire 10 rounds a second. That's 50 rounds in 5 seconds. 200 micro drones, hitting from all sides could easily overwhelm it. Most don't even need a payload, they are $10-20 decoys. 1 clean hit on your gun however, and it is potentially disabled. At that point the more expensive stuff can potentially attack with impunity.
Your gun can fire 10 rounds a second. That’s 50 rounds in 5 seconds. 200 micro drones, hitting from all sides could easily overwhelm it.
It takes 3 minutes for a 60mph drone to travel 3 miles.
It takes 1minute 30 seconds for a 120mph drone to travel 3 miles.
So no. I'll literally run out of ammo (70 seconds of firing) before you arrive.
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There are in fact a huge number of reliable counters to drones, including but not limited to anti-aircraft gun systems, anti-aircraft lasers, RF jamming devices (especially effective against cheap/makeshift drones), and several more. Drones are currently an emergent threat without a robust countermeasure scheme, but given their massive role in the Ukraine war that is not going to go unaddressed for long. From a purely mechanical standpoint, small drone munitions are also physically very vulnerable, making them readily destroyed by anti-air autocannon fire or even laser weapons if you assume RF jamming will not solve the problem.
Between GPS (jammable but likely gets you into the target area), dead reckoning, optical flow sensors and increasingly impressive onboard camera processing, RF jamming will soon be irrelevant.
Almost a decade ago I was flying agricultural mapping missions that were 99% autonomous, and the parts that weren't were problems a military drone doesn't have (soft launch and landing)
The clear counter is autocannons, likely fully automated themselves to manage large swarms. The other would be cheap anti-drone missiles that either are basically a drone themselves or a glorified model rocket. Possibly tiny, cheap and fast interceptors launched from fixed-wing drones. The weak point of drones is literally their physical weakness.
It's worth noting we are at the start of an arms race. It will iterate all over the place.
For example, smoke and chaff deploying drones would make defensive fire harder. Anti air can be either baited (and so depleted) or rushed. Lasers can be shielded against, at least for a time. Jamming can be countered with line of site communications.
In turn, each of these can be countered.
A key thing of note is that your solutions are heavy. Fine for defending a static target, but problematic when dealing with defending a mobile unit etc infantry of transports. In those situations an extremely rapid, focused highly dynamic response would be required. The obvious way to deploy those fast enough is to have them automated and airborne, aka a drone swarm.
I might be completely wrong, current drone warfare is akin to the invention of the smoothbore musket. How it will develop remains to be seen (for better or for worse).
It's going up be interesting and scary when we see the first mega swarm of drones, a river of them just pouring through the sky and hammering from every direction at the defenses.
Constant evolution of drone and antidrone, a production race with frontlines being slowly shifting walls of drone combat, them pouring out of factories as fast as they can be made with the front moving based on who can make more per hour
I suspect it will be more subtle even if it's only battery life limited. Huge swarms will also struggle against fixed defences. More likely it will be used in ambush. E.g. air deployed near an enemy convoy, or swarming from rooftops and windows onto an infantry unit. Counter deployment will have to be seconds to stop the lead elements. Potentially with heavier reinforcements flying in.
I've personally got visions of a Boston dynamics dogbot with a harness full of drones. 1 button press and a few dozen micro drones swarm out, with larger ones launching as needed.
I could also see facial recognition drones being deployed from a predator drone, like cluster bombs. A little akin to the bots used in the film minority report. They swarm a building or block, and try and identify all the faces they can find.
The key thing however will be battery life. Multicopters are power hogs. You need around 40% battery to get maybe 5-20 minutes flight times (depending on how the manoeuvre). Longer times can be achieved , but requires larger systems with higher costs. Is 1 system with a 2 hour flight time worth 20 smaller systems only good for 10 minutes?
You use the word easily so many times here where it becomes more and more apparent that you probably don't think it means what it means
I've worked with drones of various sizes. Bigger and more expensive ones are more capable, but hard to make bullet proof. If you can remote off their sensors and weapons into cheap, more disposable systems, it makes sense.
A big drone, like a predator, drops a package into an area. Mid sized multicopters provide local computing power and coordination. Small planes provide fast loiter surveillance. Small multicopters with cameras give more accurate coverage. For attack, you have what amounts to a hand grenade with props. Protection takes the form of similar disposables. A flying strobe light to mess up optical tracking. Chaff bombs to mess up radar tracking. Smoke to obscure the high value units.
A lot of these I could throw together myself, given a few weeks, and a few grand. What part wouldn't be easy, for a large and well funded military r&d team?
What part wouldn't be easy? The hand grenade with props. The strobe light. The chaff. The software. The batteries and power supply. The reliability. The compute requirements. There is so many things that are easy sounding to you because you romanticise the idea but it's not easily done at all
Easy for a remotely advanced military force.
An explosive drone is easy. Just a small amount of high explosives and an electronic detonator.
Strobe lights could just be an overdriven LED. It just needs to dazzle optical sensors for a few seconds.
Chaff is just lightweight foil. It's effectively an oversized party popper. It's job is to help overwhelm radar based tracking.
Software is the hardest bit. At the same time, many computer game 'AIs' are good enough at this they need to be dumbed down significantly. It would be more specialised, but only needs to be written once, then rolled out to a fleet.
Batteries would be a swarms limiting factor. Single shot lithium would likely be the bulk. 5-20 minutes of flight, then it's dead. Disposables would likely need to be moved into position by other means, either a dedicated transport drone, ground transport, or air drop. Your transport doesn't need to stay in the combat zone however, it can bug out and be reused. Larger more specialist systems would land and loiter to save batteries, and/or be fuel cell powered.
Reliability is handled by numbers, losing 10% is fine, when you have 20% extra.
Computing requires would be met by something like Nvidia's Jetson range. They are designed for low power, low weight AI processing. Putting a tflop of computing power in the close Comms loop would be simple. The controller would be the most expensive part of the swarm. Not only would it need enough power, both computing and electrical, but also significant Comms capabilities. Radio links, with optical backup would be the workhorse. With a mesh setup, including dummies to help hide it's location. This is similar to how the display drones work. An expensive hub, serving a cheap swarm.
While none of this is "easy" for a random guy in a shed, or a terrorist in a cave, it's child's play compared to a lot of the tech the US can deploy.
It's not easy for you, me
For anyone.
It's easy for the anime engineers in your head
No, it's not just arts and crafts foil put in a box and now you have chaffe
Again it's just you romanticised the idea and don't understand how complicated such a system would be, it's beyond our capabilities to make
military hardware is not made to be cool, it's made to be cost effective and reliable
I design build and operate broadcast equipment. A good chunk goes onto UAVs. I've built small quads, and I've played around with equipment fully capable of some of the more complex tasks. E.g. live 3D mapping from an airborne capable computer.
I'm also friends with several people who used to design and build military equipment, including radar systems. Military tech is a weird mix of amazingly high tech, stupidly simple hacks and long lifespan versions of off the shelf technology. I've a fairly good feel for how hard or easy a good chunk of the bits are to build. Most of what I suggested I could personally design and build, or easily commission, given some time, a reasonable budget, and access to restricted resources as required.
In its simplest form, chaff is just tuned lengths of mylar foil. As it flutters, it glitters in a radar beam. This creates a large noise floor. While modern military chaff is more advanced, the old stuff will still cause problems for modern systems. It's not trying to hide a tank, or pull off a missile's lock. It's trying to swamp the signal from a tiny, mostly plastic, drone.
I'm also not saying to reinvent the wheel. Chaff is now a fairly niche defence tool. It's hard to use while advancing, and gives away your position. It also needs to be integrated with other countermeasures to be useful. It is still a fairly solved problem however. It's cheap to make, quick to deploy, and available in bulk, if required.
Most modern military equipment isn't expensive due to its inherent nature. It's expensive because it's a niche product, and the buyers have deep wallets. The same game plays out in broadcasting. A £100k camera isn't that much better than a £5k one. It is better however, and buyers are willing to pay for that difference.
The reverse is also true, as Ukraine is proving. 100 $1k drones are more useful than 1 $100k, ultra capable, drone or missile. The point of a swarm is to allow multiple cheap systems to do the job of a far more expensive weapon.
Jammers only work against remote controlled drones. Autonomous ones have no such issue. And jammers are never a problem against civilians, which tech like this will eventually be used on.
That's only one example