光控相控阵天线子阵划分方法的研究

针对在光控相控阵天线中，子阵数和每个子阵内天线单元数的不同会对相控阵系统的性能有明显影响的问题，在光控相控阵天线系统物理模型的基础上阐述了子阵数与主瓣偏移和副瓣电平的关系，提出了利用幅度加权消除副瓣电平的影响，只基于主瓣偏移的子阵划分方法．将2个约束条件减少为一个约束条件，简化了运算过程，并通过计算机仿真验证了结果的正确性和有效性．

Research of subarray partition in optically phased array radar

In view of the fact that, in the optically phased array radar, because the number of subarrays and the number of antenna units in every subarray are different, the performance of the phased array system will be greately influenced. Based on the physical model of optically phased array system, the relationship between the number of subarrays and the sidelobe level and mainlobe deviation is expounded, and the method is given for subarray partition based on the mainlobe deviation and elimination of the influence of sidelobe level to subarray partition by amplitude weighting. The operation becomes simple by reducing two constraints to one. And this method is verified to be correct and effective by computer simulation.