Constrained Least-Squares Optimization in Conformal Array Antenna Synthesis
Constrained Least-Squares Optimization in Conformal Array Antenna Synthesis
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DOI：
10.1109/tap.2007.891860
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发表时间：
2007-03
影响因子：
5.7
通讯作者：
L. Vaskelainen
中科院分区：
文献类型：
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作者：
L. Vaskelainen
研究了约束最小二乘优化方法的最小均方误差问题。可以通过快速迭代来选择非零目标值的相位和非零约束值的相位，以最佳地拟合目标函数幅度。这种改进的最小二乘优化方法为大型共形天线阵的综合提供了一种快速、鲁棒的方法。也可以针对元件激励幅度写入约束，并且可以完成具有预定义幅度的相位合成。迭代加权校正技术用于精确的旁瓣控制。给出了二维椭圆和大型三维共形天线阵的综合实例
The least mean square error of the constrained least-squares optimization method is studied. The phases of non-zero goal values and the phases of non-zero constraint values can be selected by a fast iteration for optimum fit to the goal function amplitude. This kind of modified least-squares optimization method opens up a fast and robust synthesis method for large conformal antenna arrays. Constraints can be written also for the element excitation amplitudes and a phase synthesis with predefined amplitudes can be done. Iterative weight-correction technique is used for accurate sidelobe control. Synthesis examples of two-dimensional elliptical and large three-dimensional conformal antenna arrays are presented