A result of the instrumental polarization measurement of the Chinese Spectral Radioheliograph

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.