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题名:
Analysis of an Co-phasing detecting method based on far-field images of sparse-optical-synthetic-aperture system
作者: Liu Zheng1,2,3; Wang Sheng-Qian2,3; Rao Chang-Hui2,3
刊名: ACTA PHYSICA SINICA
出版日期: 2012-02-01
卷号: 61, 期号:3
关键词: sparse-optical-synthetic-aperture system ; far-field image ; piston error ; co-phasing detection
文章类型: Article
英文摘要: For the sparse-optical-synthetic-aperture telescope system, the co-phasing detection plays an important role for the realization of system's high resolution in solving out piston errors between sub-apertures. In this paper, the relationship between piston error and system's far-field intensity was analyzed based on physical principles, then the impact of piston error on system's far-field images was clarified theoretically. Furthermore, an innovative co-phasing detecting method based on the far-field images' similarity was approved for the hi-sub-aperture systems, with its feasibility, detecting deviation and dynamic range were researched by simulation. The results proved that, with this method, the piston error between the system's two sub-apertures can be soundly detected principally while immune from the problems of 2 pi ambiguity and direction decision that might exist within some other co-phasing detecting methods. Plus its dynamic range shown from these results, this new co-phasing detecting method provides effective references for deeper research of co-phasing detecting techniques.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
关键词[WOS]: COMPLEX-VALUED OBJECT ; TELESCOPES
收录类别: SCI
语种: 英语
WOS记录号: WOS:000301008900079
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/2402
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Natl Univ Def Technol, Coll Optoelect Sci & Engn, Changsha 410073, Hunan, Peoples R China
2.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China
3.Chinese Acad Sci, Inst Opt & Elect, Lab Adapt Opt, Chengdu 610209, Peoples R China

Recommended Citation:
Liu Zheng,Wang Sheng-Qian,Rao Chang-Hui. Analysis of an Co-phasing detecting method based on far-field images of sparse-optical-synthetic-aperture system[J]. ACTA PHYSICA SINICA,2012,61(3).
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