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中文摘要：
在大型的相控阵天线中,为降低系统复杂性及应用成本,需要采用子阵划分技术对天线阵面进行最优划分。首先总结了基于子阵划分的相控阵雷达信号处理流程,在此基础上,从低副瓣的多波束、子阵级自适应干扰抑制等不同方面研究子阵划分技术。对现有子阵划分的研究途径、划分的方法以及各自特点进行研究和归纳。在抑制波束旁瓣方面,建立了求解最优子阵划分的优化数学模型;在自适应抗扰方面,分析了栅零点等影响子阵级自适应处理性能的因素。最后提出了最优子阵划分问题的进一步研究方向。
英文摘要：
In order to simplify the system,sub-array partitioning technique is needed to divide the antenna array for large-sized phased array.This paper summarizes the phased array radar signal processing based on sub-array partitioning,and makes research about sub-array technology from some different aspects such as the low side lobes multiple beam,sub-array adaptive interference suppression and so on.Existing research approaches,methods and their characteristics on sub-array partitioning technique are studied and summarized.Mathematic model about optimum sub-array partitioning for beams with low side lobes is theorized,and the effect about grating notches and other factors for the performance of adaptation against external interference is analyzed.At last,the further research directions of the problem are proposed.
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