Zobrazeno 1 - 10
of 152
pro vyhledávání: '"Byron M. Welsh"'
Autor:
Major (Dr.) Robert F. Mills, Major (Dr.) Gerald C. Gerace, Dr. Byron M. Welsh, Dr. Bruce W. Suter, Dr. Andrew J. Terzuoli, Captain (Dr.) Richard A. Raines
Publikováno v:
1996 Annual Conference Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c552e588448010d287767fbe059a6ff2
https://doi.org/10.18260/1-2--6192
https://doi.org/10.18260/1-2--6192
Publikováno v:
Optical and Quantum Electronics. 31:451-468
Controlling optical aberrations is one of the enduring problems in optics. Recent advances in adaptive optics for astronomical applications have shown the promise of adaptive optics technology for controlling aberrations. Micro-electro-mechanical def
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1790e66dc68ad4077d2141ef56bf2524
https://doi.org/10.1023/a:1006967012137
https://doi.org/10.1023/a:1006967012137
Publikováno v:
Optics Communications. 151:93-100
We address the optimal processing of astronomical images using the deconvolution from wave-front sensing technique (DWFS). A constrained least-squares (CLS) solution which incorporates ensemble average DWFS data is derived using Lagrange minimization
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c49022982b4482a34d2257ee5588c3a
https://doi.org/10.1016/s0030-4018(98)00074-1
https://doi.org/10.1016/s0030-4018(98)00074-1
Publikováno v:
Reviews of Modern Physics. 69:437-506
Atmospheric turbulence profoundly limits the angular resolution of astronomical telescopes working at visible and near-infrared wavelengths. In fact, the angular resolution for conventional imaging through turbulence is on the order of 5{endash}20{pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::383363d9088d66f1fec353edf4119d1d
https://doi.org/10.1103/revmodphys.69.437
https://doi.org/10.1103/revmodphys.69.437
Publikováno v:
Optics Communications. 133:381-392
Atmospheric turbulence limits the resolution of astronomical optical imaging systems. Speckle imaging and deconvolution from wavefront sensing (DWFS) are two post-detection image processing methods for overcoming some turbulence effects which do not
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e087fad40311dbb9fd31694c8af21312
https://doi.org/10.1016/s0030-4018(96)00261-1
https://doi.org/10.1016/s0030-4018(96)00261-1
Publikováno v:
Measurement. 17:251-265
A technique for visualizing the density distribution of a gas flow using sheared beam interferometry was analyzed. The interference pattern which arises in the shearing interferometer encodes information about the gradient of the line integral of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::887708866afa6b03400a350f1f03875b
https://doi.org/10.1016/0263-2241(96)00021-8
https://doi.org/10.1016/0263-2241(96)00021-8
Publikováno v:
Applied optics. 35(29)
For adaptive optical systems to compensate for atmospheric-turbulence effects, the wave-front perturbation must be measured with a wave-front sensor (WFS). A Hartmann WFS typically divides the optical aperture into subapertures and then measures the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0721d37c1222b2b2a3c02f681a2999a
https://pubmed.ncbi.nlm.nih.gov/21127584
https://pubmed.ncbi.nlm.nih.gov/21127584
Publikováno v:
Applied optics. 35(21)
For adaptive-optics systems to compensate for atmospheric turbulence effects, the wave-front perturbation must be measured with a wave front sensor (WPS), and key parameters of the atmosphere and the adaptive-optics system must be known. Two paramete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::adb45c0975bb9accdfefaa28e8788559
https://pubmed.ncbi.nlm.nih.gov/21102833
https://pubmed.ncbi.nlm.nih.gov/21102833
Publikováno v:
Applied optics. 34(20)
Simulating the effects of atmospheric turbulence on optical imaging systems is an important aspect of understanding the performance of these systems. Simulations are particularly important for understanding the statistics of some adaptive-optics syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6842eb665ac104fe3955e16ae78e3747
https://pubmed.ncbi.nlm.nih.gov/21052227
https://pubmed.ncbi.nlm.nih.gov/21052227
Publikováno v:
Applied optics. 34(21)
The performance of ground-based optical imaging systems is severely degraded from the diffraction limit by the random effects of the atmosphere. Adaptive-optics techniques have been used to compensate for atmospheric-turbulence effects. A critical co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8455e3074a6dde64e006a38db017bd3
https://pubmed.ncbi.nlm.nih.gov/21052244
https://pubmed.ncbi.nlm.nih.gov/21052244