Title :
A result of the instrumental polarization measurement of the Chinese Spectral Radioheliograph
Author :
Cang Su ; Wei Wang ; Yihua Yan
Author_Institution :
Key Lab. of Solar Activity, Nat. Astron. Obs., Beijing, China
Abstract :
The polarization calibration is very important to the Chinese Spectral Radioheliograph (CSRH) for obtaining high-quality radio images. In this paper we discuss a convenient method on how to use interferometer to measure the polarization leakage to CSRH when the feeds have the similar characteristics. Without adjusting the feeds we can use the cross-correlation and self-correlation between two antennas to calculate the parameters of polarization.
Keywords :
correlation methods; electromagnetic wave polarisation; radioastronomical techniques; radiotelescopes; radiowave interferometry; solar activity; solar corona; Chinese spectral radioheliograph; cross correlation method; high quality radio image; instrumental polarization measurement; polarization calibration; polarization leakage measurement; polarization parameter; radio interferometer; self-correlation method; Equations; Extraterrestrial measurements; Feeds; Instruments; Polarization; Receiving antennas;
Conference_Titel :
General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI
Conference_Location :
Beijing
DOI :
10.1109/URSIGASS.2014.6930007
