Articles with "hover" as a keyword



An adaptive trajectory tracking control of four rotor hover vehicle using extended normalized radial basis function network

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Published in 2017 at "Mechanical Systems and Signal Processing"

DOI: 10.1016/j.ymssp.2016.05.043

Abstract: Abstract In this paper, an adaptive trajectory tracking controller based on extended normalized radial basis function network (ENRBFN) is proposed for 3-degree-of-freedom four rotor hover vehicle subjected to external disturbance i.e. wind turbulence. Mathematical model… read more here.

Keywords: hover; rotor hover; four rotor; hover vehicle ... See more keywords

Helicopter noise in hover: Computational modelling and experimental validation

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Published in 2017 at "Acoustical Physics"

DOI: 10.1134/s1063771017060070

Abstract: The aeroacoustic characteristics of a helicopter rotor are calculated by a new method, to assess its applicability in assessing rotor performance in hovering. Direct solution of the Euler equations in a noninertial coordinate system is… read more here.

Keywords: helicopter; helicopter noise; field; hover ... See more keywords

Updated checklist of hover flies (Diptera: Syrphidae) of the Azores archipelago with taxonomic notes and the description of a new species, Eristalis azorensis sp. nov.

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Published in 2025 at "Acta Entomologica Musei Nationalis Pragae"

DOI: 10.37520/aemnp.2025.017

Abstract: We report the results of a field expedition to the Azores archipelago. A total of 13 species of hover flies were collected, including several species new to certain islands of the archipelago. The records of… read more here.

Keywords: azores archipelago; new species; hover flies; hover ... See more keywords