DEVELOPMENT OF 2.8-GHz SOLAR FLUX RECEIVERS

被引：0

作者：

Yun, Youngjoo ^{[1
]}

Park, Yong-Sun ^{[2
]}

Kim, Chang-Hee ^{[2
]}

Lee, Bangwon ^{[2
]}

Kim, Jung-Hoon ^{[3
]}

Yoo, Saeho ^{[3
]}

Lee, Chul-Hwan ^{[3
]}

Han, Jinwook ^{[4
]}

Kim, Young Yun ^{[4
]}

机构：

[1] Korea Astron & Space Sci Inst, Taejon 305348, South Korea

[2] Seoul Natl Univ, Dept Phys & Astron, Seoul 151742, South Korea

[3] Space & Earth Technol Syst, Seoul 137130, South Korea

[4] Natl Radio Res Agcy, Korean Space Weather Ctr, Cheju 695922, South Korea

来源：

JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY | 2014年 / 47卷 / 06期

关键词：

instrumentation: miscellaneous; methods: observational; Sun: activity; Sun: radio radiation;

D O I：

10.5303/JKAS.2014.47.6.201

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the development of solar flux receivers operating at 2.8 GHz to monitor solar radio activity. Radio waves from the sun are amplified, filtered, and then transmitted to a power meter sensor without frequency down-conversion. To measure solar flux, a calibration scheme is designed with a noise source, an ambient load, and a hot load at 100 degrees C. The receiver is attached to a 1.8 m parabolic antenna in Icheon, owned by National Radio Research Agency, and observation is being conducted during day time on a daily basis. We compare the solar fluxes measured for last seven months with solar fluxes obtained by DRAO in Penticton, Canada, and by the Hiraiso solar observatory in Japan, and finally establish equations to convert observed flux to the so-called Penticton flux with an accuracy better than 3.2 sfu.

引用

页码：201 / 207

页数：7

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