Bias Calibration of X-Band Radar Reflectivity Factor System Based on Parametric Self-Consistency Principle

The evolution of DSD and scattering characteristics during cloud precipitation processes determines the quantifiable constraint relationship between the dual-polarization parameters, known as the self-consistency principle of the parameters. This article further develops the self-consistency principle constraint relationship for dual-polarization parameters in the X-band and designs a correction relationship for the parameter bias of radar reflectivity factor. Experimental results show that under appropriate conditions, correcting the system bias of the X-band dual-polarization radar reflectivity factor using the improved self-consistency principle can improve the accuracy and stability of the correction results.