December 23, 2013, by Ken Jorgustin
Hiding from Drones
Drones are equipped with extremely powerful camera’s which can detect people and vehicles at an altitude of several miles. Most drones are equipped with night vision, and/or infrared vision camera’s, so-called FLIR sensors. These can see human heat signatures from far away, day or night. However there are ways to hide from drones…
1. Day camouflage: Hide in the shadows of buildings or trees. Use thick forests as natural camouflage or use camouflage nets. Using netting over vehicles and camo patterns for other objects that confuse vision recognition systems. Currently the best such camo pattern is known as A-TACS.
2. Night camouflage: Hide inside buildings or under protection of trees or foliage. Do not use flashlights or vehicle spot lights, even at long distances. Drones can easily spot this during night missions.
3. Heat camouflage: Emergency blankets (so-called space blankets) made of Mylar can block infrared rays. Wearing a space blanket as a poncho at night will hide your heat signature from infrared detection. Also in summer when the temperature is between 96°F and 104°F, infrared camera’s cannot distinguish between body and its surroundings.
4. Wait for bad weather. Drones cannot operate in high winds, smoke, rainstorms or heavy weather conditions.
5. No wireless communication. Using mobile phones or GPS based communication will possibly compromise your location.
6. Spreading reflective pieces of glass or mirrored material on a car on a roof will confuse the drone’s camera.
7. Decoys. Use mannequins or human-sized dolls to mislead the drone’s reconnaissance.
How To Block IR-Infrared Thermal Imaging
Drones are remote controlled. The pilots operating the drone can be thousands of miles away at Ground Control stations. The control link is the satellite transmitted datalink by which the pilot controls the plane. By jamming or intercepting the datalink, one can interfere with the drones controls. The data link can be encrypted but often is not.
1. Interception. A sophisticated technique is using sky grabber software with a satellite dish and a TV tuner to intercept the drone’s frequencies. Communication from and to the drone can be intercepted.
2. Interference. By broadcasting on different frequencies or pack of frequencies the link between the drone pilot and the drone can be disconnected.
3. GPS spoofing. Small, portable GPS transmitters can send fake GPS signals and disrupt the Drones navigation systems. This can be used, for example, to steer drones into self-destruction flight paths or even hijack them and land them on a runway.