A Summary of Optimum Sub-Array Partitioning Problem in Array Radar

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.