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本文利用约束非线性最优化方法,研究空间扫描柱面轴向偶极子阵的低副瓣综合问题.利用阵列的单元可实现增益方向图的信息,文中提出了一种当扫描角给定时求全空间最大副瓣电平的近似方法.在此基础上,把扫描角给定时的空间扫描阵列低副瓣综合表示为一约束非线性规划,采用我们提出的新直接方法求解,即可求出一组使阵列的总方向图满足扫描角给定时的低副瓣指标,且具有最高的方向性系数的激励系数.如果阵列的扫描方向图不能满足预先给定的低副瓣指标,则可求出一组使扫描角给定时阵列的方向图在可达到低副瓣指标上,具有最高的方向性系数的激励系数,文中还给出了一些空间扫描方向图低副瓣控制的模拟计算结果.
In this paper, constrained non-linear optimization method is used to study the low-sidelobe synthesis of space-scanning cylindrical dipole arrays. Using array elements to realize the gain pattern information, an approximate method to find the maximum sidelobe level of the full space when the scan angle is given is proposed. On this basis, the low sidelobe of the spatial scanning array given as the scan angle is presented as a constrained nonlinear programming. Using the new direct method we proposed, we can get a set of equations that make the total pattern of the array satisfy the scanning angle Low sidelobe index at a given time, and with the highest directivity coefficient. If the array’s scan pattern does not satisfy the predefined low sidelobe index, then a set of patterns for the scan angle given to the array of patterns can be achieved with low sidelobe index, with the highest directivity coefficient of the excitation coefficient , Some simulation results of low sidelobe control of spatial scanning pattern are given.