双线偏振多普勒天气雷达的双通道一致性

Dual Channel Consistency for Dual-polarization Doppler Weather Radar

针对同时发射体制双线偏振多普勒天气雷达,介绍其对双通道及双通道一致性的含义,提出了双通道幅度一致性和相位一致性的基本要求,并对影响双通道一致性的因素和关键器件,以及双通道不一致对雷达测量性能(差分反射因子测量误差、差分传播相位测量误差、特定的差分传播相位测量误差)的影响,进行了研究和分析。

An introduction is made to the dual channel, the dual channel consistency, the basic requirements for dual channel amplitude consistency and dual channel phase consistency, as well as the factors and critical devices influencing dual channel consistency. The impacts of the dual channel inconsistency on radar measuring performance （including measuring errors in differential reflectivity, differential propagation phase, differential propagation phase, and specially designated differential propagation phase） are studied.