Tuesday, October 29, 2024

More Captain Drone Killer ideas...

More Captain Drone Killer ideas...

 

Disclaimer: These are just ideas, use them at your own risk.


Some interesting DIY wide-band jammers


A wide-band jammer that only costs $120 to make:


https://eee.yasar.edu.tr/wp-content/uploads/2015/06/cem_anil_kivanc_jammer_poster_yasar.pdf


Another wide-band jammer, this one uses a spark to generate noise. It's very interesting, but I would be scared of all the x-rays being generated from the spark:


https://www.instructables.com/Simple-broadband-jammer/


And of course, I've seen alot of wide-band jammers for sale. I can't recommend any, since I haven't personally tried them out.


These wide-band jammers would obviously be useful for knocking out drones. Unless you want to use a Microwave Oven Cannon(TM).


Microwave Oven Cannon(TM)


This one is quite simple. If you dismantle your microwave oven and take out the magnetron, waveguide and the electronics, you could turn it into a Microwave Oven Cannon(TM).


I wouldn't recommend it, unless you re-design the waveguide so that it is more of a parabolic dish, so that it projects all the waves in a parallel line.


Speaking of which... drone jamming isn't all that difficult?

It seems drone jamming and knocking out drones isn't all that difficult.


It might be that drone detection is more difficult, because the cellular mobile frequency range is being used by mobile phones as well as drones (drones with SIM cards).


Drone detection, various ways...


  • Radar
    • Hard, because drones are so small you could mistaken them for birds
  •  Microphone
    • Easier than radar, cause they make a buzzing noise
  • Camera
    • Easiest, if you have a fish-eye wide-angle lens with computer vision algorithms
  • Radio Frequency (RF) usage, e.g. cellular frequencies, normal RC (radio controller) frequencies, WiFi frequencies
    • Hard, because it's hard to distinguish normal cellular and WiFi usage from drone usage




Summary of wavelets

Summary of wavelets https://en.wikipedia.org/wiki/Wavelet_transform https://en.wikipedia.org/wiki/Discrete_wavelet_transform Read the 2nd UR...