Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Alice M. Nightingale"'
Autor:
Alice M. Nightingale, David Cavalieri, Ryan Kelly, Stanislav Gordeyev, R. Mark Rennie, Eric J. Jumper
Publikováno v:
AIAA Journal. 54:2782-2790
Methods and results are described for flight-test measurements of the aero-optical effect of the near-field flow surrounding a medium-sized helicopter in hover. The data were acquired using a novel, passive measurement approach in which optical wave-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdc1eabca7695318114f73e1cdaf7db7
https://doi.org/10.2514/1.j054549
https://doi.org/10.2514/1.j054549
Publikováno v:
AIAA Journal. 51:2714-2726
An alternative adaptive-optic controller, using both flow control and a phase-lock-loop control strategy, has been designed to overcome bandwidth limitations inhibiting current adaptive-optic controllers. A discrete-vortex code and weakly compressibl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06cf4ee08b57dc68aab624d887076f6f
https://doi.org/10.2514/1.j052425
https://doi.org/10.2514/1.j052425
Publikováno v:
AIAA Journal. 47:2298-2305
This paper uses a discrete-vortex code to examine a shear layer’s response to forcing at its origin and to develop a relationship between a shear layer’s optical characteristics and the commonly used characteristic growth length, vorticity thickn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f20edfbeae58b1ee20b735d9043afbb8
https://doi.org/10.2514/1.34244
https://doi.org/10.2514/1.34244
Publikováno v:
39th Plasmadynamics and Lasers Conference.
This paper describes a control methodology that synchronizes the deformable mirror corrections to the coherent aberrations of a regularized compressible shear layer. The controller was developed in order to automate the "feedforward" adaptive-optic c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df1243c7f9928b68a065750abd770816
https://doi.org/10.2514/6.2008-4211
https://doi.org/10.2514/6.2008-4211
Publikováno v:
37th AIAA Plasmadynamics and Lasers Conference.
Non-uniform, variable-density fields, resulting from compressibility effects in turbulent flows, are the source of aero-optical distortions which cause significant reductions in optical system performance. Adaptive-Optics (AO) is a technique used to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7936cce05bea023f30ad72dbdc21449d
https://doi.org/10.2514/6.2006-3072
https://doi.org/10.2514/6.2006-3072
Autor:
Eric J. Jumper, John P. Siegenthaler, Stanislav Gordeyev, Bill Goodwine, Alice M. Nightingale
Publikováno v:
36th AIAA Plasmadynamics and Lasers Conference.
*** † ‡ § This paper uses a discrete-vortex code to examine a shear layer’s response to forcing at its origin. The code and its thermodynamic overlay have been used in previous studies to predict the optically-aberrating characteristics of rel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::505fb75266f6ecf5c19a3463b27cd347
https://doi.org/10.2514/6.2005-4774
https://doi.org/10.2514/6.2005-4774
Publikováno v:
Optical Engineering. 52:071413
Spot estimation accuracy of Shack-Hartmann images and its impact on Airborne Aero-Optic Laboratory (AAOL) wavefront statistics are addressed. A study is conducted of an individual spot simulated using a double sinc function under varying degrees of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3738c56a77c1c3226ea9516eded1285
https://doi.org/10.1117/1.oe.52.7.071413
https://doi.org/10.1117/1.oe.52.7.071413