高频雷达频率监测系统的时频抗脉冲干扰方法

Pulse interference rejection method for FMS of HF radar based on time frequency processing

通过分析脉冲干扰在高频雷达频率监测系统(FMS)中的时频特性,提出了通过时频处理剔除脉冲干扰的一种有效方法.用二维OS算法实时获得强脉冲干扰下的噪声基底,用幅度和百分率双门限方法检测脉冲干扰.实际应用表明,该方法能够很好地提高FMS的性能.

By analyzing time-frequency characteristics of the pulse interference in the frequency monitor system (FMS) of high frequency radar, this paper gives a method to eliminate its effects. An two dimensions OS (order statistics) arithmetic was used to estimate the noise floor under the intense pulse interference in real-time and a double threshold method in amplitude and percentage was provided to detect the pulse interference. The application indicated that this method can improve the performance of FMS.