  Efficient and precise location of emission sources in an urbanized
environment is very important in electronic warfare. Therefore, unmanned aerial
vehicles (UAVs) are increasingly used for such tasks. In this paper, we present
the cooperation of several UAVs creating a wireless sensor network (WSN) that
locates the emission source. In the proposed WSN, the location is based on
spectrum sensing and the signal Doppler frequency method. The paper presents
the concept of the system. Simulation studies are used to assess the efficiency
of the cooperative WSN. In this case, the location effectiveness for the WSN is
compared to the single UAV.
