Results 121 to 130 of about 630 (149)

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

A Subsystem Test Bed for Chinese Spectral Radioheliograph [PDF]

Publications of the Astronomical Society of Australia, 2014
Abstract The Chinese Spectral Radioheliograph is a solar dedicated radio interferometric array that will produce high spatial resolution, high temporal resolution, and high spectral resolution images of the Sun simultaneously in decimetre and centimetre wave range.
Yihua Yan
exaly   +2 more sources

EMC Study in Mingantu Spectral Radioheliograph

2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC), 2018
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.
Yihua Yan, Donghao Liu, Lihong Geng
exaly   +2 more sources

The Polarization Performance of MingantU SpEctral Radioheliograph

2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC), 2018
The MUSER(MingantU SpEctral Radioheliograph) is a new radio interferometric array for solar delicated, which will be used to image the Sun with high spatial resolution, high time resolution and high frequency resolution. The antenna works with ultra-wide band dual-circular polarized feed to obtain high quality dual circular polarized image of the Sun ...
Yihua Yan, Cang Su
exaly   +2 more sources

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.
Yihua Yan, Long Xu
exaly   +3 more sources

The Nancay multifrequency radioheliograph: New observations

Advances in Space Research, 1988
Abstract The Nancay radioheliograph provides images of the sun on a north-south baseline at up to five frequencies between 150 and 450 MHz with time resolution up to 0.1 s. East-west images are also obtained at 164 MHz with a time resolution up to 0.02 s. This paper briefly presents the performances of the instrument and the observing modes.
C. Mercier, K.-L. Klein, G. Trottet
openaire   +1 more source

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

Three-Frequency Operation of the Culgoora Radioheliograph

Proceedings of the IEEE, 1973
K.V. Sheridan, N.R. Labrum, W.J. Payten
exaly   +2 more sources

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