Radar echoes of individual wind turbines measured in L, S and C band

In the project WERAN it is also aimed to determine the interaction of wind turbines (WT) with radar signals. The evaluate the strength of single a single WT reflecting radar transmissions, measurement campaigns with multicopters (UAS) have been carried out at various radar sites in the L (Air Defense), S (AD and ATC) and C band (Precipitation radar). The presentation focusses on radar echoes received at different UAS flight altitudes and distances to the scatterers. It is useful to analyse the radar return both in the time and frequency domain to detect static and time variant signal components. Some results will be shown and discussed. In the follow-up project WERAN plus there are some additional airborne vehicles in use to carry the measurement equipment. Some ideas of what can be expected from measurements at higher altitudes and moving at horizontal speed will be shared