Ground layer adaptive optics: Analysis of the wavefront sensing issue

被引：5

作者：

Nicolle, M ^{[1
]}

Fusco, T ^{[1
]}

Michau, V ^{[1
]}

Rousset, G ^{[1
]}

Blanc, A ^{[1
]}

Beuzit, JL ^{[1
]}

机构：

[1] Off Natl Etud & Rech Aerosp, F-92322 Chatillon, France

来源：

ADVANCEMENTS IN ADAPTIVE OPTICS, PTS 1-3 | 2004年 / 5490卷

关键词：

D O I：

10.1117/12.549766

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Here are presented the basis of an analytical development whose purpose is to give arguments for the evaluation of wavefront sensing concepts for Ground Layer Adaptive Optics. Simple hypothesis make possible the derivation of analytical expressions for the phase measurement error and reveal consequent differences between Star Oriented and Layer Oriented concepts. Influence of key parameters such as guide star statistics or strength of the turbulence in altitude are then studied. In the Layer Oriented case, necessity of reducing the guide stars flux dispersion to achieve a uniform correction in the field of interest is demonstrated.

引用

页码：858 / 869

页数：12

共 5 条

[1]

[Anonymous], 1988, VERY LARGE TELESCOPE

[2] Signal to noise ratio of layer-oriented measurements for multiconjugate adaptive optics [J].

Bello, D ;

Conan, JM ;

Rousset, G ;

Ragazzoni, R .

ASTRONOMY & ASTROPHYSICS, 2003, 410 (03) :1101-U16

[3] Optimal wave-front reconstruction strategies for multiconjugate adaptive optics [J].

Fusco, T ;

Conan, JM ;

Rousset, G ;

Mugnier, LM ;

Michau, V .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2001, 18 (10) :2527-2538

[4] Adaptive-optics corrections available for the whole sky [J].

Ragazzoni, R ;

Marchetti, E ;

Valente, G .

NATURE, 2000, 403 (6765) :54-56

[5]

RAGAZZONI R, 1999, ASTRON ASTROPHYS S S, V136

← 1 →