Measurement-based Tapped Delay Line Channel Modeling for Inter-UAV Communications with Typical UAV Attitudes

The unmanned aerial vehicle (UAV) swarms are broadly utilized for rescuing, detection, condition monitoring, and cognitive converting nowadays. For optimizing swarm cooperation, robust inter- Uavnetworks are required. This forms a strong motivation for channel characterization of the inter- Uavchannels. However, despite the UAV attitude being a influential factor of inter- Uavchannels, it is still rarely investigated at present. Thus, this study proposes the tapped delay line (TDL) channel models for four typical UAV attitudes including level, diving, climbing, and right banking at the 820 MHz band with a 40 MHz bandwidth based on channel measurements. Correspondingly, the model parameters such as gains, delays, and fading distribution of each tap are extracted and analyzed. The results provide valuable insights into the system design and evaluation of inter- Uavnetworks.