INTERFEROMETER IN RADIO ASTRONOMY

被引：71

作者：

SWENSON, GW

MATHUR, NC

机构：

[1] Departments of Electrical Engineering and Astronomy, University of Illinois, Urbana

[2] National Radio Astronomy Observatory, Green Bank, W. Va.

来源：

PROCEEDINGS OF THE INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS | 1968年 / 56卷 / 12期

关键词：

D O I：

10.1109/PROC.1968.6824

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A theory is developed for the response of a two-element radio interferometer to a partially coherent field, without restriction as to bandwidth or antenna properties. It is shown that for a completely incoherent source the narrow-band interferometer output is a component of the Fourier transform of the source brightness, which can therefore be mapped by repeated interferometer observations. A partially or completely coherent extended source, on the other hand, cannot be mapped by this technique. The history of radio interferometry in astronomy is discussed and examples are given of the current uses of the technique in the precise measurement of source positions, in the measurement of the diameters of extremely small sources, and in the detailed mapping of complex sources. Copyright © 1968 by The Institute of Electrical and Electronics Engineers, Inc.

引用

页码：2114 / +

页数：1

共 55 条

[1] POSITIONS OF RADIO SOURCES DETERMINED BY INTERFEROMETER AT ROYAL RADAR ESTABLISHMENT [J].

ADGIE, RL ;

GENT, H .

NATURE, 1966, 209 (5023) :549-&

[2]

[Anonymous], 1966, RADIO ASTRONOMY

[3] INTERFEROMETER EXPERIMENT WITH INDEPENDENT LOCAL OSCILLATORS [J].

BARE, C ;

CLARK, BG ;

KELLERMANN, KI ;

COHEN, MH ;

JAUNCEY, DL .

SCIENCE, 1967, 157 (3785) :189-+

[4]

Beran M. J., 1964, THEORY PARTIAL COHER

[5]

BLUM EJ, 1959, ANN ASTROPHYS, V22, P140

[6] THE CONCEPT OF AN ANGULAR SPECTRUM OF PLANE WAVES, AND ITS RELATION TO THAT OF POLAR DIAGRAM AND APERTURE DISTRIBUTION [J].

BOOKER, HG ;

CLEMMOW, PC .

PROCEEDINGS OF THE INSTITUTION OF ELECTRICAL ENGINEERS-LONDON, 1950, 97 (45) :11-17

[7]

BORN M, 1965, PRINCIPLES OPTICS

[8] RADIO INTERFEROMETRY OF DISCRETE SOURCES [J].

BRACEWELL, RN .

PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1958, 46 (01) :97-105

[9]

BRACEWELL RN, 1966, NATL ACAD SCI NATL R, V1408, P243

[10]

BRACEWELL RN, 1961, IRE T ANTENNAS PROPA, VAP9, P59

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