Results 121 to 130 of about 606 (135)

EMC study in chinese spectral radioheliograph

2015 1st URSI Atlantic Radio Science Conference (URSI AT-RASC), 2015
There are always the Electromagnetic compatibility (EMC) problems where the electromagnetic phenomenon exists. EMC is an inescapable problem in radio astronomy and also common problem for radio astronomical telescopes.
null Lihong Geng, null Zhijun Chen, null Yihua Yan, null Qinghui Song   +3 more
openaire   +1 more source

Data processing and imaging for MingantU SpEctral Radioheliograph (MUSER)

2017 IEEE Visual Communications and Image Processing (VCIP), 2017
MingantU SpEctral Radioheliograph (MUSER) is a radio synthesis imaging array dedicated to observe the sun, operating on multiple frequencies from decimeter to centimeter range. In the experimental observations MUSER produces about 2.55 Tera Bytes data daily, which will be processed offline to get the solar radio images.
Linjie Chen, Wang Wei, Yihua Yan, Long Xu 0001   +3 more
openaire   +2 more sources

Evaluation of the Imaging Performance of the Nobeyama Radioheliograph

Publications of the Astronomical Society of Japan, 1994
Abstract The Nobeyama Radioheliograph is a radio interferometer dedicated to solar observations at 17 GHz. Its imaging performance is concisely described on the basis of the correlator outputs. Antenna-based errors are removed by a self-calibration method.
Hideki Koshiishi, Shinzo Enome, Hiroshi Nakajima, Kiyoto Shibasaki, Masanori Nishio, Toshiaki Takano, Yoichiro Hanaoka, Chikayoshi Torii, Hideaki Sekiguchi, Susumu Kawashima, Takeshi Bushimata, Noriyuki Shinohara, Yoshihisa Irimajiri, Yasuhiko Shiomi   +13 more
openaire   +1 more source

The mark II Nan�ay radioheliograph

Solar Physics, 1977
We describe the new Nancay Radioheliograph (version II) which is a multicorrelator system. The main characteristics of this instrument are high space and time resolutions and flexible on-line data processing. At present it produces one-dimensional images at 169 MHz. This instrument is mainly intended for solar observations.
J. Bonmartin, I. Jones, A. Kerdraon, A. Lacombe, M. F. Lantos, P. Lantos, C. Mercier, M. Pick, G. Trottet, M. Bruley, C. Chantelat, M. Chapuis, Y. Chapuis, B. Clavelier, C. Couteret, J. P. Drouhin, P. Gueniau, R. Tocqueville   +17 more
openaire   +1 more source

A Proposed Correlator Backend for the Culgoora Radioheliograph

Publications of the Astronomical Society of Australia, 1979
The Culgoora radioheliograph was designed in the early 1960s and commissioned in 1967. Since then there have been dramatic increases in the speed and versatility of digital integrated-circuit devices, and also a marked fall in their cost. It is now possible to replace the original signal processing electronics with equipment, based on modern digital ...
D. J. McLean, M. Beard, A. Bos
openaire   +1 more source

An experience of radioheliographic prediction of powerful solar flares

Bulletin of the Crimean Astrophysical Observatory, 2010
An experience of radioheliographic prediction of powerful solar flares using active region microwave emission intensity and circular polarization distribution is briefly described.
G. Ya. Smol’kov, V. P. Maksimov, D. V. Prosovetskii, A. M. Uralov, I. A. Bakunina   +4 more
openaire   +1 more source

Application of wavelet clean for Mingantu Spectral Radioheliograph imaging

2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS), 2017
MingantU SpEctral Radioheliograph (MUSER) is a new aperture synthesis radio heliograph, which aims to image the Sun in snapshot mode at multiple frequencies (0.40–15.00GHz) with high time resolution, high spatial resolution and high frequency resolution.
Jun Cheng 0003, Long Xu 0001, Zhicong Lu, Dong Zhao, Linjie Chen, Yihua Yan   +5 more
openaire   +2 more sources

Solar Image Processing with the Clark Lake Radioheliograph

1985
The Clark Lake Teepee Tee radio telescope is located near Borrego Springs, California and is owned by the University of Maryland. The telescope has been operating since 1981 in different stages of software and hardware development, and is used for both sidereal and solar studies.
T. E. Gergely, M. J. Mahoney
openaire   +1 more source

Sympathetic Events As Observed with the Nobeyama Radioheliograph

Геомагнетизм и аэрономия / Geomagnetism and Aeronomy
Sympathetic phenomena on the Sun are events that occur at short time intervals in active regions located at large distances from each other. The presence of such events indicates that even very distant active regions may be connected physically to each other.
openaire   +1 more source

Multiple-frequency Operation of the Culgoora Radioheliograph

Nature Physical Science, 1972
K. V. SHERIDAN, N. R. LABRUM, W. J. PAYTEN   +2 more
openaire   +1 more source