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Unmanned Aerial Vehicle Propagation Channel over Vegetation and Lake Areas: First- and Second-Order Statistical Analysis

2021; Multidisciplinary Digital Publishing Institute; Volume: 22; Issue: 1 Linguagem: Inglês

10.3390/s22010065

1424-8220

Deyvid L. Leite, Pablo Javier Alsina, Millena Campos, Vicente A. de Sousa, Álvaro Augusto Machado de Medeiros,

Millimeter-Wave Propagation and Modeling

The use of unmanned aerial vehicles (UAV) to provide services such as the Internet, goods delivery, and air taxis has become a reality in recent years. The use of these aircraft requires a secure communication between the control station and the UAV, which demands the characterization of the communication channel. This paper aims to present a measurement setup using an unmanned aircraft to acquire data for the characterization of the radio frequency channel in a propagation environment with particular vegetation (Caatinga) and a lake. This paper presents the following contributions: identification of the communication channel model that best describes the characteristics of communication; characterization of the effects of large-scale fading, such as path loss and log-normal shadowing; characterization of small-scale fading (multipath and Doppler); and estimation of the aircraft speed from the identified Doppler frequency.