Performance Evaluation of Wave Source Localization Method Using UAVs Based on the Maximum Likelihood Estimation

For temporal and spatial spectrum sharing between primary and secondary wireless communication systems, wave source localization is a promising technique to localize areas that wireless signals are radiated. In order to localize wave sources under NLOS (Non-Line-of-Sight) environments, we have proposed a wave source localization method using UAVs (Unmanned Aerial Vehicles) based on maximum likelihood estimation and evaluate the performance of the proposed method under a situation that DoAs (Direction of Arrivals) of received signals at each UAV follow a von-Mises distribution. In this paper, we evaluate the performance of the proposed method with a more practical simulation environment using a ray-tracing radio propagation simulator.