稀布阵雷达长相干积累下的干扰抑制设计

首先对稀布阵雷达布阵特点和副瓣性能进行简单分析,指出干扰对消功能对系统工作的重要性,同时指出稀布阵雷达具有长相干积累工作的特点,系统需要结合多普勒滤波和干扰抑制技术完成干扰抑制和地杂波抑制处理。目前鲜有文章对在干扰抑制情况下系统处理流程引起的地杂波扩展问题进行分析(特别是针对稀布阵体制雷达)。结合稀布阵雷达工作特点对稀布阵常规信号处理流程产生的问题进行了分析,并提出了解决办法。最后结合实际数据对研究效果进行验证,取得良好的效果。这些工作将对稀布阵雷达的设计和实际应用具有一定的指导意义。

Interference Suppression of SIAR Based on Measured Data

In this paper, the sidelobe performance of SIAR is analyzed firstly. The interference cancella- tion is important to the system operation. SIAR system requires a combination of Doppler filtering and inter- ference suppression to remove interference and ground clutter. At present, few work has been done on the ground clutter spreading due to the system processing of the interference in the SIAR. The related problem in the conventional processing of the SIAR is pointed out, and a new method to solve this problem is proposed. Then we try to verify the study results combined with test data, and good results are obtained. The work of this article is important to the design and application of the SIAR system.