IMAGING WITH ULTRA-RESOLUTION IN THE PRESENCE OF STRONG SCATTERING

被引：5

作者：

CORNWELL, TJ ^{[1
]}

NARAYAN, R ^{[1
]}

机构：

[1] HARVARD SMITHSONIAN CTR ASTROPHYS,CAMBRIDGE,MA 02138

来源：

ASTROPHYSICAL JOURNAL | 1993年 / 408卷 / 01期

关键词：

SCATTERING; TECHNIQUES; INTERFEROMETRIC; TELESCOPES;

D O I：

10.1086/186833

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

When there is random scattering between a source and an imaging telescope or interferometer, it is known that the angular resolution that can be attained with a long exposure observation is below the ideal limit. Techniques such as speckle and self-calibration permit the use of short exposure data to restore the full resolution of the instrument. We show in this Letter that, under certain circumstances involving very strong scattering, short exposure data can actually be used to enhance the angular resolution to well beyond the ideal limit. Schematic designs for an interferometer to make use of this effect are presented.

引用

页码：L69 / L72

页数：4

共 14 条

[1]

[Anonymous], 1986, INTERFEROMETRY SYNTH

[2] LOW-FREQUENCY VARIABILITY OF PULSARS [J].