Ukraine plinking a Russian GPS-jammer with a GPS-guided bomb. Ukrainian drones blowing up Russian drone-jammers. Ukraine’s cruise missiles striking Russian air-defense sites whose missions include, you guessed it, shooting down cruise missiles.
Russia’s 23-month wider war on Ukraine has seen a lot of ironic, darkly-hilarious clashes. The latest was also one of the quickest between setup and punchline.
On Tuesday morning, Russian media announced the deployment, to Ukraine, of Russian forces’ latest high-tech counterbattery radar. A few hours later in southern Ukraine, the Ukrainians blew it up … with artillery rockets.
The irony deepens. In theory, a Russian Yastreb-AV radar would help to protect Russian troops from Ukraine’s American-made High-Mobility Artillery Rocket Systems launchers—its HIMARS. Now guess what the Ukrainians used to destroy that first Yastreb-AV.
That’s right: HIMARS.
On that note, is it even possible to hide jamming equipment? It’s whole purpose is to put out a signal that disrupts another signal to the point it can’t be used. In that opening paragraph, I was thinking “of course a gps guided missile took out a gps jammer, they’d just have to add a different mode that just seeks the loudest signal on gps frequencies”, and similar for the drone jammer. Both cases just need software to be aware that signals can be jammed and to pivot to targeting the jammer if they can’t find the original target.
Nah you don’t hide the jammers, that’s the point. They can already see you, so you make a ton of noise to obfuscate where the real target is and where the jammers are. They either hold fire, or go after the jammers.
You can definitely play tricks with jamming. If you have multiple antennas working together you can create weird, messed up harmonics. E.g. (vastly simplified) you might have 10 jammers, but apparently 100 emitters.
The jammer vs anti jammer war has been hit since around WWII. It was a big thing with the u boats, and even Bletchly park got involved. 70 years of defence spending beyond that, takes it a long way.
That’s a good point, I forgot about interference. Since the frequency is unchanging, multiple antennas could even set up a standing interference pattern that looks like there’s an emitter in an empty lot. That “follow the signal” scheme is pretty easy to defeat.
That’s also one of the simpler ideas. It’s also a bit of a rock paper scissors game. E.g. the counter to my first suggestion is to up the sensitivity of your tracking, and use the extra resolution to pick out the real target(s). That, in turn can be countered with a directional pulse. You either sweep, or target an ultra high powered pulse. The pulse is like a flash bang in a dark cave, the sensors get cooked by it.
The game goes on and on, with many branching methods and counters.
Some early fun on the subject
https://en.m.wikipedia.org/wiki/Battle_of_the_Beams
Focusing on the GPS jammer would require some hardware for direction finding; it’s not just software. Still, it’s not a huge design change.
I would have figured they’d already have multiple antennas for reliability, though I suppose that doesn’t imply they are set up to determine direction.
GPS uses time differential to calculate relative distance. It requires a fairly omnidirectional antenna to function. It would have to be a dedicated anti jammer targeting system.
The easier option is to use GPS to get into the general vicinity, then just go inertially guided, or use a camera etc.