Problem
Research questions and friction points this paper is trying to address.
UAV
propagation channel
vegetation
lake
fading
Unmanned Aerial Vehicle Propagation Channel over Vegetation and Lake Areas: First- and Second-Order Statistical Analysis
🤖 AI Summary
本文通过使用无人机在特定植被和湖泊环境中收集数据，分析了无线电传播信道特性，包括大尺度衰落、小尺度衰落及多普勒效应。
📝 Abstract
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.
Innovation
Methods, ideas, or system contributions that make the work stand out.
unmanned aerial vehicles
channel characterization
large-scale fading
small-scale fading
Doppler frequency
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