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Applications of linear predictors in...

Page, Kelly A.

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Applications of linear predictors in adaptive optics.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Applications of linear predictors in adaptive optics./
Author:	Page, Kelly A.
Description:	170 p.
Notes:	Source: Dissertation Abstracts International, Volume: 66-03, Section: B, page: 1511.
Contained By:	Dissertation Abstracts International66-03B.
Subject:	Physics, Astronomy and Astrophysics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3168836
ISBN:	9780542054051

Applications of linear predictors in adaptive optics.
Page, Kelly A.

Applications of linear predictors in adaptive optics. - 170 p.

Source: Dissertation Abstracts International, Volume: 66-03, Section: B, page: 1511.

Thesis (Ph.D.)--University of Wyoming, 2005.

The goal of adaptive optics (AO) systems for astronomical telescopes is to remove the distortions caused in optical images by the turbulent atmosphere above the telescope. In this work, the Frozen Turbulence Predictor (FTP) has been developed based on the frozen flow model of atmospheric turbulence for use in AO systems. The FTP is designed to predict tropospheric turbulence a few milliseconds after atmospheric data has been collected by the system.

ISBN: 9780542054051Subjects--Topical Terms:

1019521
Physics, Astronomy and Astrophysics.

Applications of linear predictors in adaptive optics.
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100 1 $a Page, Kelly A. $3 1912984
245 1 0 $a Applications of linear predictors in adaptive optics.
300 $a 170 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-03, Section: B, page: 1511.
500 $a Adviser: Earl J. Spillar.
502 $a Thesis (Ph.D.)--University of Wyoming, 2005.
520 $a The goal of adaptive optics (AO) systems for astronomical telescopes is to remove the distortions caused in optical images by the turbulent atmosphere above the telescope. In this work, the Frozen Turbulence Predictor (FTP) has been developed based on the frozen flow model of atmospheric turbulence for use in AO systems. The FTP is designed to predict tropospheric turbulence a few milliseconds after atmospheric data has been collected by the system.
520 $a By implementing the FTP in an AO system, time delay errors inherent to the system can be greatly reduced. Amongst 36 atmospheric models of one, two, and three layers of turbulence, the FTP was able to reduce the time delay error by an average of 68%. In favorable cases the FTP was able to reduce the time delay error by over 90%. While other linear atmospheric predictors have shown similar reduction in time delay errors, the advantage of the FTP is that it requires very little data to make predictions. This allows predictions to be performed very rapidly and within the time limits of the frozen flow model of turbulence.
520 $a An additional benefit of the FTP is that it solves for the turbulence profiles in multiple turbulent layers using a single wavefront sensor. This is important for AO systems that attempt to compensate turbulent layers individually. Using two and three layer turbulence models, the ability to resolve each of the input layers is demonstrated. It is shown that the ability of the FTP to predict turbulence is tied to its ability to reconstruct the layers in the turbulence.
590 $a School code: 0264.
650 4 $a Physics, Astronomy and Astrophysics. $3 1019521
650 4 $a Physics, Optics. $3 1018756
690 $a 0606
690 $a 0752
710 2 0 $a University of Wyoming. $3 1017859
773 0 $t Dissertation Abstracts International $g 66-03B.
790 1 0 $a Spillar, Earl J., $e advisor
790 $a 0264
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3168836