Contributions to data transmission at critical moments on unmanned aerial vehicles  

作　　者：Jose Enrique RODRIGUEZ David SEGURADO Manuel SANCHEZ Jose Javier MARTINEZ Rafael GONZALEZ 

机构地区：[1]National Institute of Aerospace Technology,Madrid 28850,Spain [2]Department of Computer Science,University of Alcala,Alcala de Henares,Madrid 28054,Spain

出　　处：《Chinese Journal of Aeronautics》2023年第8期247-257,共11页中国航空学报（英文版）

摘　　要：As for unmanned aircraft, the knowledge of the aircraft performance is directly related with the navigation, guidance, and control system programming. Therefore, the measured data in each phase of the flight must be sufficiently precise to obtain a good characterization of aircraft.This article proposes new methods of sending information to ground, which make it possible to know the aircraft behavior accurately, and for this purpose, four contributions have been made for ALO(Avión Ligero de Observación, Spanish acronym for Light Observation Aircraft). Currently, the characterization is based on data obtained at ten samples per second, insufficient to acquire detailed knowledge of what happened during the whole flight of an aircraft. As a result of these contributions, many more samples per second of accelerations and angular velocities are obtained at the most critical moments of the flight, such as takeoff or landing. Among the improvements included are data compression techniques, providing references to locate the measured data in time and identifying labels of each parameter.

关 键 词：Critical moments Data transmission Datacompression tech-niques Radio-modem Recommended Standard 232(RS-232) Unmannedaerial vehicle 

分 类 号：V279[航空宇航科学与技术—飞行器设计]