A Model for C2n (optical Turbulence) Profiles Using Radiosonde Data
Author | : Edmond M. Dewan |
Publisher | : |
Total Pages | : 56 |
Release | : 1993 |
Genre | : Atmospheric turbulence |
ISBN | : |
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Author | : Edmond M. Dewan |
Publisher | : |
Total Pages | : 56 |
Release | : 1993 |
Genre | : Atmospheric turbulence |
ISBN | : |
Author | : E. M. Dewan |
Publisher | : |
Total Pages | : 204 |
Release | : 1993 |
Genre | : Atmospheric turbulence |
ISBN | : |
Author | : Hemani Kaushal |
Publisher | : Springer |
Total Pages | : 233 |
Release | : 2017-01-06 |
Genre | : Technology & Engineering |
ISBN | : 8132236912 |
This book provides an in-depth understanding of free space optical (FSO) communication with a particular emphasis on optical beam propagation through atmospheric turbulence. The book is structured in such a way that it provides a basic framework for the beginners and also gives a concise description from a designer’s perspective. The book provides an exposure to FSO technology, fundamental limitations, design methodologies, system trade-offs, acquisition, tracking and pointing (ATP) techniques and link-feasibility analysis. The contents of this book will be of interest to professionals and researchers alike. The book may also be used as a textbook for engineering coursework and professional training.
Author | : Elena Masciadri |
Publisher | : World Scientific |
Total Pages | : 415 |
Release | : 2009 |
Genre | : Science |
ISBN | : 1848164858 |
This book collects most of the talks and poster presentations presented at the "Optical Turbulence ? Astronomy meets Meteorology" international conference held on 15?18 September, 2008 at Nymphes Bay, Alghero, Sardinia, Italy. The meeting aimed to deal with one of the major causes of wavefront perturbations limiting the astronomical high-angular-resolution observations from the ground. The uniqueness of this meeting has been the effort to attack this topic in a synergic and multidisciplinary approach promoting constructive discussions between the actors of this science ? the astronomers, meteorologists, physicists of the atmosphere and the experts in adaptive optics and interferometry techniques whose main goal is to correct, in real-time, the wavefront perturbations induced by atmospheric turbulence to restore at the telescope foci the best available image quality.
Author | : James H. Brown |
Publisher | : |
Total Pages | : 44 |
Release | : 1984 |
Genre | : Atmosphere, Upper |
ISBN | : |
Eight AFGL thermosondes were flown from Mt. Haleakala, Hawaii to measure atmospheric turbulence in the form of the optical refractive index structure constant C sub n squared. Temperature and relative humidity comparisons between the AFGL instruments and standard GMD rawinsondes are presented. The AFGL instruments obtain greater temperature and humidity spatial resolution and consequently show finer structure in the profiles. A diurnal shift in the C sub n squared profile is noted as well as a tropopause enhancement. Coherence scales are calculated from the thermosonde data.
Author | : James H. Brown |
Publisher | : |
Total Pages | : 62 |
Release | : 1984 |
Genre | : Atmospheric turbulence |
ISBN | : |
Five different instruments were used in coordinated multiple experiments to measure atmospheric turbulence. C sub n squared, the optical refractive structure constant, was measured by thermosondes, UHF radar, stellar scintillometer, and aircraft mounted micro-thermal probes. Presented here are the results of 19 rawinsode flights. Also comparisons of eight thermosonde/radar profiles, one radar, scintillometer, thermosonode profile, and several aircraft profiles are presented. For the scales discussed here, good agreement is shown between radar, thermosonode, and scintillometer data. Worse agreement is obtained from aircraft measurements. A diurnal shift in the C2 profile is noted but no tropopause enhancement is found.
Author | : Valerʹi︠a︡n Ilʹich Tatarskiĭ |
Publisher | : |
Total Pages | : 492 |
Release | : 1971 |
Genre | : Atmospheric turbulence |
ISBN | : |
Author | : Arun K. Majumdar |
Publisher | : Springer Science & Business Media |
Total Pages | : 429 |
Release | : 2010-05-05 |
Genre | : Science |
ISBN | : 0387286772 |
This is a comprehensive tutorial on the emerging technology of free-space laser communications (FSLC). The book offers an all-inclusive source of information on the basics of FSLC, and a review of state-of-the-art technologies. Coverage includes atmospheric effects for laser propagation and FSLC systems performance and design. Free-Space Laser Communications is a valuable resource for engineers, scientists and students interested in laser communication systems designed for the atmospheric optical channel.
Author | : Indian Institute of Tropical Meteorology |
Publisher | : |
Total Pages | : 110 |
Release | : 1996 |
Genre | : Meteorology |
ISBN | : |