Continuous wave radiation effects on UAV data link system

In order to study the safety and reliability of Unmanned Aerial Vehicle in the battlefield electromagnetic environment, a continuous-wave electromagnetic radiating system is built in the laboratory. Using this system, experiments on irradiation effect for U AV data link system are implemented. Experimental results show that: the UAV data link system is susceptible to electromagnetic interference and can't work well in some frequencies. The UAV data link system would fall in state of losing lock, which means the data transmission between UAV and the ground control equipment would not be carried on effectively. What is more, different polarization direction of radiated electromagnetic field leads to different values of the electric field threshold for the communication link system losing lock. Analysis on results shows that the energy coupling channel between UAV data link systems and continuous-wave electromagnetic radiating system is the way of “back door” coupling.