一种改进的阵列天线方向图主波束快速赋形算法

An Improved Fast Method of Mainlobe Shaping for Arbitrary Arrays

改进的基于自适应天线阵理论的主波束赋形快速算法,可对任意阵列快速完成主波束赋形和旁瓣电平的控制。该算法通过局域权函数的迭代来减小综合方向图和期望方向图在主波束上的差别,旁瓣电平的控制可以通过在旁瓣峰值区域处加干扰来快速达到。该方法对主波束方向、宽度、形状和增益的控制非常成功。给出了一些算例说明这种算法的有效性。

This paper presents an improved pattern synthesis algorithm for arbitrary arrays based on adaptive array theory. With this algorithm ,the designer can efficiently control both mainlobe shaping and sidelobe levels. The values of the weighting function are iterated to minimize the absolute difference between desired and achieved mainlobe patterns, and the sidelobe control can be fast achieved by iteration only on sidelobe peak regions, This algorithm provides a great improvement in mainlobe shaping control. Example simulations are shown to illustrate the effectiveness of this algorithm.