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Optimum linear array of an optical aperture synthesis telescope 被引量:2
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作者 WEN Jianguo JIN Shengzhen ning shunian 《Chinese Science Bulletin》 SCIE EI CAS 2002年第23期1964-1968,共5页
Measuring out successively the degree of coherence of the source produced by any couple of the small apertures via rotating an array composed of the small aperture telescopes, and synthesizing them into the (u, v) cov... Measuring out successively the degree of coherence of the source produced by any couple of the small apertures via rotating an array composed of the small aperture telescopes, and synthesizing them into the (u, v) coverage of the source, the brightness distribution of the source can be obtained by the inverse Fourier transform of the degree of coherence with much higher resolution than from a single telescope. This article discusses the arrangements of the small apertures in the linear array, and found a method to decide the quality of the arrangements, the judgment factorε is introduced to calculate the arrangements in quantity. There are 1.5x1011 possibilities for 11 apertures. Therefore, the computer procedures are programmed to select the optimum arrangements. The effect of the simulation of the aperture synthesis is given for the linear array. The simulation method can also be used in the nonlinear arrays. 展开更多
关键词 OPTICAL APERTURE synthesis OPTIMUM linear array JUDGMENT factor (u v)-spectrum sampling point SPREAD function.
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