中文摘要：

基于压制式干扰模型，描述了重庆陈家坪新一代多普勒天气雷达（Z9230）在2012年4月27日上午11时30分左右受到外界强射频杂波干扰现象：气象目标回波信号被完全淹没，速度信息被压制。主要对雷达受到干扰后引起的相关参数的变化进行分析，并且对新一代天气雷达（SA）接收机保护器的维护技术进行了探讨。

英文摘要：

On the basis of the barrage jamming model commonly?used in electronic war,the phenomenon of the externalpowerful RF clutter jamming happened on CINRAD/SA(Z9230)stationed in Chenjiaping,Chongqing at about11:30am onApril27th,2012is described.The echo signal of a meteorological target was submerged completely,and its speed informationwas also suppressed.The relevant parameters′change caused by the disturbed radar is analyzed.The maintenance technology ofthe receiver protector of CINRAD/SA is discussed.