Ensuring reliable data transmission for unmanned aerial vehicles (UAVs) is crucial for their efficient operation. Downlink communication, the transfer of data from the UAV to a ground station, can be challenged by various factors such as distance, obstacles, and limited bandwidth. To overcome these challenges, researchers are exploring cutting-edge

This paper investigates the performance characteristics of radar altimeters employing COFDM modulation. The study focuses on analyzing key metrics such as accuracy and depth in various operational environments. A comprehensive analysis framework is developed to assess the impact of factors like signal attenuation and environmental changes on altime