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本文阐述了直接数据域空时自适应处理(space-time adaptive processing)算法抑制雷达杂波的原理,给出了具体的算法过程和计算机模拟仿真实验结果。空时自适应处理与分立干扰滤除算法不同的是该方法对每个距离单元的空时数据进行独立处理时,该距离门中均匀杂波和非均匀干扰的抑制均不需要利用其他距离门的样本。直接数据域方法是一种完整的非均匀STAP处理算法。仿真实验结果证明该方法在非均匀环境下,对雷达杂波进行抑制得到了较好的效果。
In this paper, the principle of space-time adaptive processing (DCT) algorithm to suppress radar clutter is described. The specific algorithm process and computer simulation results are given. Space-time adaptive processing and discrete interference filter algorithm is different is that the method of each unit of space-time data to be processed independently, the distance gate uniform noise and non-uniform interference suppression do not need to use other distance gate The sample The direct data domain method is a complete non-uniform STAP processing algorithm. Simulation results show that the proposed method can effectively suppress radar clutter in non-uniform environment.