The Impact of UAV Jittering at Different Altitudes on Air-to-Ground Wireless Channel

In recent years, unmanned aerial vehicles (UAVs) have attracted attention in civil and military scenarios with advantages such as low cost and easy deployment. However, in the actual communication process, the aerial drone platform does not have fixed infrastructure support, and is significantly affected by the airflow, mechanical vibration of the body and other factors that affect the stability of UAV. This will also affect the air-to-ground (A2G) wireless channels. At present, most of the researches on UAV communication channel do not consider the impact of the jittering characteristics of the UAV platform. In this paper, we present a study of the influence of UAV jitter when hovering at different altitudes at 2.4 GHz band on the received signal, and on A2G wireless channels under different propagation scenarios. The results show that in the line of sight (LoS) scenario, the stability of the drone hovering has a greater effect on the signal than its influence in the non-line of sight (NLoS) scenario.