Results 1 to 10 of about 2,501 (184)

Calibration of antenna arrays for aeronautical vehicles on ground

open access: yesAerospace Science and Technology, 2013
Antenna pattern and characteristics change significantly when antenna arrays are placed on platforms like aeronautical vehicles. Calibration of antenna arrays is an important and costly process for such cases.
Ahmet M Élbir, Temel Engin Tuncer
exaly   +3 more sources

Development of technologies for low-cost oceanographic unmanned aeronautical vehicles [PDF]

open access: yes, 2009
Oceanographic research vessels and buoys typically provide high-resolution, shortrange measurements at a high sample rate. Satellites provide wide-range, low-resolution measurements at a low sample rate.
Bennett, Matthew
core   +2 more sources

Cognitive Radio for Aeronautical Communications: A Survey

open access: yesIEEE Access, 2016
Novel air traffic management (ATM) strategies are proposed through the Next Generation Air Transportation and Single European Sky for ATM Research projects to improve the capacity of the airspace and to meet the demands of the future air traffic.
Rajendra Prasad Sirigina, A S Madhukumar
exaly   +2 more sources

Aeronautical Engineering: A Continuing Bibliography With Indexes

open access: yes, 1999
This supplemental issue of Aeronautical Engineering, A Continuing Bibliography with Indexes (NASA/SP-1999-7037) lists reports, articles, and other documents recently announced in the NASA STI Database.

core   +14 more sources

Aeronautical technology 2000 - A projection of advanced vehicle concepts [PDF]

open access: yesAircraft Design Systems and Operations Meeting, 1984
At the request of NASA and under the aegis of the National Research Council, representatives from industry, academic institutions and government have participated in a workshop to consider opportunities for the exploitation of aircraft technology in such fields as aerodynamics, materials, structures, guidance, navigation and control, human factors ...
C. ROSEN, III, R. BURGER, A. SIGALLA
openaire   +1 more source

Formation of the leading-edge vortex and spanwise flow on an insect-like flapping-wing throughout a flapping half cycle [PDF]

open access: yes, 2013
This paper presents an experimental investigation of the evolution of the leading-edge vortex and spanwise flow generated by an insect-like flapping-wing at a Reynolds number relevant to flapping-wing micro air vehicles (FMAVs) (Re = ~15,000 ...
Knowles, Kevin, Phillips, Nathan
core   +1 more source

A Wind Tunnel Simulation Facility for On-Road Transients [PDF]

open access: yes, 2014
This paper outlines the creation of a facility for simulating on-road transients in a model scale, ¾ open jet, wind tunnel. Aerodynamic transients experienced on-road can be important in relation to a number of attributes including vehicle handling ...
Sims-Williams, D.B.   +5 more
core   +1 more source

Simulation of wake vortex effects for UAVs in close formation flight [PDF]

open access: yes, 2009
This paper addresses the development of multiple UAV deployment simulation models that include representative aerodynamic cross-coupling effects. Applications may include simulations of autonomous aerial refuelling and formation flying scenarios.
Whidborne, James F.   +5 more
core   +1 more source

FEC design for remote control and data transmission of aeronautic and astronautic vehicles

open access: yesChinese Journal of Aeronautics, 2019
Abstract This paper focuses on the advanced Forward Error Correction (FEC) based on Low-Density Parity-Check (LDPC) codes for remote control and data transmission of Aeronautic and Astronautic Vehicles (AAV). It shows that the nontransparent LDPC codes with odd row weights are able to resist phase inversion with a small computational overhead. To the
Qin HUANG   +3 more
openaire   +1 more source

Conceptual Design and Cost Estimate of a Subsonic NASA Testbed Vehicle (NTV) for Aeronautics Research [PDF]

open access: yes2013 Aviation Technology, Integration, and Operations Conference, 2013
A conceptual design and cost estimate for a subsonic flight research vehicle designed to support NASA's Environmentally Responsible Aviation (ERA) project goals is presented. To investigate the technical and economic feasibility of modifying an existing aircraft, a highly modified Boeing 717 was developed for maturation of technologies supporting the ...
Craig L. Nickol, Peter Frederic
openaire   +1 more source

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