Hassan raaid (7 risultati)

Paperback. Condizione: Brand New. 140 pages. 8.66x5.91x0.32 inches. In Stock.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The main objective of this book is designing Next Generation Optical Telescope (NGOT) to gather information from a far region of space and illustrates with simulation the Adaptive Optics system. The Quality of images and spectra taken at ground-based astronomical observations is degraded by distortions in the Earth's atmosphere. Compensation of the atmospheric seeing can be achieved using the technology of Adaptive Optics, a technique which is being pursued by every major ground-based observatory. The techniques of adaptive Optics are those by which telescope optics is adjusted on a rapid time scale to compensate for distortions in the wave front entering a telescope. 140 pp. Englisch.…

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - The main objective of this book is designing Next Generation Optical Telescope (NGOT) to gather information from a far region of space and illustrates with simulation the Adaptive Optics system. The Quality of images and spectra taken at ground-based astronomical observations is degraded by distortions in the Earth's atmosphere. Compensation of the atmospheric seeing can be achieved using the technology of Adaptive Optics, a technique which is being pursued by every major ground-based observatory. The techniques of adaptive Optics are those by which telescope optics is adjusted on a rapid time scale to compensate for distortions in the wave front entering a telescope.…

Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: H. Wadee WafaaWafaa Hikmat Wadee: was an master degree in Astronomy and Space, Baghdad,Iraq she got her B.Sc.degree 2010 and M.Sc.2017 in Astronomy and Space,Univ. of Baghdad, college of science. Now she is lecturer in college of Re.…

Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: N. Hassan RaaidR.N.Hassan is an assistant prof. and vice presidant in Al-karkh university of science, got B.Sc.(1998),M.Sc. (image processing 2002),Ph.D.(remote sensing 2012) in Baghdad Univ., he taught courses in astronomical techni.…

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Computer simulation was carried out, to describe the entrance wavefront into the circular and hexagonal aperture of telescope. The wave aberration function can be expressed as a weighted sum of Zernike polynomials. The next generation very large ground base optical telescope has segmented aperture with sub segments almost hexagonal shape, therefore, it requires to find modified Zernike polynomials analyzer for hexagonal shape by utilizing convention form of Zernike polynomials for circular shape. The modified Zernike polynomials have the same properties of the original one across hexagonal aperture, like orthogonality, normality, mathematically independent, making the variance of the sum of modes equal to the sum of the variances of each individual mode, the invers of transformation matrix is the transpose of it and this make the compensation process in Adaptive Optics system much easier and faster. Derivation of the modified Zernike polynomials was been derived totally according to Gram-Schmidt orthogonalization process. The number of aberration modes that was derived is only ten modes because of that orthogonalization process is complex and needed highly mathematical calculation.…

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The main objective of this book is designing Next Generation Optical Telescope (NGOT) to gather information from a far region of space and illustrates with simulation the Adaptive Optics system. The Quality of images and spectra taken at ground-based astronomical observations is degraded by distortions in the Earth's atmosphere. Compensation of the atmospheric seeing can be achieved using the technology of Adaptive Optics, a technique which is being pursued by every major ground-based observatory. The techniques of adaptive Optics are those by which telescope optics is adjusted on a rapid time scale to compensate for distortions in the wave front entering a telescope.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 140 pp. Englisch.…