双线偏振雷达是继多普勒雷达技术后，将在我国逐步推广的天气雷达探测技术。双线偏振技术扩展了常规多普勒雷达功能，可以直接探测到与降水粒子的微物理特征有关的差分反射率因子ZDR、差分传播相移KDP等物理量。基于先进的C波段双线偏振多普勒天气雷达的系统构成、工作过程和性能指标，分析了双线偏振天气雷达测量精度。计算结果表明，文中设计的雷达能够满足实际使用要求。

The dual-linear polarization radar is what China will popularize gradually following the Doppler radar technology. Dual-polarization technology has been widely used to expand the performance of modern weather radar system. The radar can offer microphysical characteristics of hydrometeors as differential reflectivity ZDR and specific differential phase KDP and so on. This paper describes the components, operation and technical specification of a system of advanced C-band dual-polarization Doppler weather radar. The measurement precision of the radar is analyzed. The calculating results show that the performance of radar can satisfies application requirements.

TN959.4