Physics – Optics
Scientific paper
Aug 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007apopt..46.5979h&link_type=abstract
Applied Optics IP, vol. 46, Issue 23, pp.5979-5986
Physics
Optics
Atmospheric Turbulence, Laser Beam Transmission, Digital Image Processing, Optical Instruments, Turbulence, Scintillation
Scientific paper
A pupil plane imaging system, consisting of a camera and optics that image the entrance pupil of a telescope, measures scintillation induced by atmospheric turbulence. Algorithms are developed to estimate the distribution of turbulence from scintillation assuming the well known relationship between scintillation scale size and the range of turbulence layer. The algorithms were exercised using a 75 cm pupil within a 1 meter telescope located at North Oscura Peak in New Mexico, based on light from a source 52.6 km away. Estimates of the Cn 2 profile over the path are derived using coarse range bins. From the Cn 2 profile, an estimate of Fried's transverse coherence length was computed and compared with that from other sensors. The algorithm is tested in several ways. Error sources are discussed, including the intrinsic insensitivity of the technique to turbulence near the pupil.
Holmes Richard B.
Hughes Williams M.
No associations
LandOfFree
Pupil plane imager for estimation of turbulence over long horizontal paths does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Pupil plane imager for estimation of turbulence over long horizontal paths, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pupil plane imager for estimation of turbulence over long horizontal paths will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-959418