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针对阵元不规则排列的N层环形阵波束控制算法进行了研究.通过分析不规则阵元波束控制理论,在球坐标系下推导了波束控制码与最大波束指向的计算过程,并进行了坐标系的转换,建立了天线阵模型.提出了一种基于角度码与径向码相结合的波束控制算法,设计了控制码分配准则,评估波束跃度与阵列入射波仰角之间的关系.结果表明:采用该算法分配控制码与均匀分配法相比,具有较低的最大波束指向误差与较低的最小波束跃度,可满足目标精密跟踪测量的应用.
The algorithm of N-layer annular array beam array with irregular arrangement of array elements is studied.Analyzing irregular arrayed beamforming theory, the calculation process of beamforming code and maximum beam direction is deduced in spherical coordinate system, and the coordinate The antenna array model is established.The beam control algorithm based on angle code and radial code is proposed and the control code assignment criterion is designed to evaluate the relationship between the beam jerk and the incident elevation angle of the array.Results It shows that compared with the uniform assignment method, the proposed algorithm has lower maximum beam pointing error and lower minimum beam jerk, which can meet the application of the target precision tracking measurement.