Solar GLAO and TAO: performance comparisons

NAOC Open IR

	Solar GLAO and TAO: performance comparisons
	Ren DeQing 1; Zhang Xi 2; Liu SiZhen 2
	2018
Source Publication	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN	1674-4527
Volume	18 Issue:7
Abstract	Multi-conjugate adaptive optics (MCAO), consisting of several deformable mirrors (DMs), can significantly increase the adaptive optics (AO) correction field of view. Current MCAO can be realized by either star-oriented or layer-oriented approaches. For solar AO, ground-layer adaptive optics (GLAO) can be viewed as an extreme case of layer-oriented MCAO in which the DM is conjugated to the ground, while solar tomography adaptive optics (TAO) that we proposed recently can be viewed as star-oriented MCAO with only one DM. Solar GLAO and TAO use the same hardware as conventional solar AO, and therefore it will be important to see which method can deliver better performance. In this article, we compare the performance of solar GLAO and TAO by using end-to-end numerical simulation software. Numerical simulations of TAO and GLAO with different numbers of guide stars are conducted. Our results show that TAO and GLAO produce the same performance if the DM is conjugated to the ground, but TAO can only generate better performance when the DM is conjugated to the best height. This result has important application in existing one-DM solar AO systems.
Keyword	ADAPTIVE OPTICS PHASE Adaptive Optics GLAO MCAO
Language	英语
Funding Project	[NSF] ; [Mt. Cuba Astronomical Foundation]
Document Type	期刊论文
Identifier	http://ir.bao.ac.cn/handle/114a11/67055
Collection	中国科学院国家天文台
Affiliation	1.Calif State University Northridge, Phys & Astron Dept, Northridge, CA 91330 USA 2.中国科学院国家天文台 3.中国科学院 4.中国科学院大学
Recommended Citation GB/T 7714	Ren DeQing,Zhang Xi,Liu SiZhen. Solar GLAO and TAO: performance comparisons[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2018,18(7).
APA	Ren DeQing,Zhang Xi,&Liu SiZhen.(2018).Solar GLAO and TAO: performance comparisons.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,18(7).
MLA	Ren DeQing,et al."Solar GLAO and TAO: performance comparisons".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 18.7(2018).

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