期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
A DYNAMIC ECG MONITORING AND RECORDING SYSTEM
1
作者 Lijun Tian, Zongzhan Du, Dongqing Wang(Department of Electrical PowerShandong Polytechnic University,Jinan, 250014,China)Aili Wang(Shandong Institute of Traditional Chinese Medicine,Jinan, 250014,China) 《Chinese Journal of Biomedical Engineering(English Edition)》 1994年第1期38-46,共9页
ADYNAMICECGMONITORINGANDRECORDINGSYSTEMLijunTian,ZongzhanDu,DongqingWang(DepartmentofElectricalPowerShandong... ADYNAMICECGMONITORINGANDRECORDINGSYSTEMLijunTian,ZongzhanDu,DongqingWang(DepartmentofElectricalPowerShandongPolytechnicUniver... 展开更多
关键词 : MONITORING and RECORDING high storage capacity DYNAMIC RAM datacompression detecting and analysing QRS SINGLE-CHIP microcomputer.
下载PDF
Contributions to data transmission at critical moments on unmanned aerial vehicles
2
作者 Jose Enrique RODRIGUEZ David SEGURADO +2 位作者 Manuel SANCHEZ Jose Javier MARTINEZ Rafael GONZALEZ 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2023年第8期247-257,共11页
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 s... 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. 展开更多
关键词 Critical moments Data transmission datacompression tech-niques Radio-modem Recommended Standard 232(RS-232) Unmannedaerial vehicle
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部