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大气科学  2006 

双偏振天气雷达同时收发模式的一种改进方法

DOI: 10.3878/j.issn.1006-9895.2006.04.09

Keywords: 偏振雷达,同时发射,改进,信号处理

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Abstract:

目前,双偏振多普勒天气雷达的同时发射方式受到了普遍关注,作者针对该方式中偏振参量差分反射率存在较大误差的问题,研究了双发射通道相位差与差分反射率精度的关系,以及双通道发射功率差、接收机增益等对差分反射率的影响.在此基础上,给出了双偏振同时发射方式的一种改进方案,并讨论了该方案的优势和特点,设计了双偏振多普勒天气雷达同时发射方式下回波信号的处理框图.

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