%0 Journal Article
%T Imaging Research On Sparse-aperture Systems of Symmetrical Configuration<br>两种对称型稀疏孔径系统的成像研究
%A Wu Quanying
%A Qian Lin
%A Shen Weimin
%A <br>吴泉英
%A 钱霖
%A 沈为民
%J 光子学报
%D 2006
%I 
%X A sparse-aperture design named dual three sub-apertures,which is composed of nine sub-apertures, is proposed.Each three sub-apertures make up of a sub-pupil,three sub-pupils make up of a main pupil.The configuration of dual three sub-apertures is symmetrical and redundant.The symmetrical sparse-aperture systems of three arms and dual three sub-apertures are researched.The feature and Modulation Transfer function (MTF) are compared between dual three sub-apertures' and three arms'.Image simulation and Wiener filter of the two kinds of symmetrical sparse apertures are illuminated with different fill factors,and image quality is evaluated.The nonredundant sparse aperture of Golay6 is also compared.The results show that the configuration and image quality of dual three sub-aertures are better than three arms'.The symmetrical configuration of sparse aperture systems has the advantages of flexible configuration and easy fabrication.
%K Space remote sensing
%K Sparse aperture
%K Symmetrical configuration
%K MTF<br>空间遥感
%K 稀疏孔径
%K 对称结构
%K 调制传递函数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=611E120CA6625AA4&yid=37904DC365DD7266&vid=6209D9E8050195F5&iid=5D311CA918CA9A03&sid=BE411C407DAF4824&eid=D45398EB9ED445AA&journal_id=1004-4213&journal_name=光子学报&referenced_num=7&reference_num=14