作　　者： ; ; ;

机构地区： 解放军电子工程学院

出　　处： 《计算机仿真》 2007年第2期308-310,共3页

摘　　要： 数字波束形成是天线技术与数字信号处理技术结合的产物,是智能天线实现空分多址的关键技术。采用相位激励赋形多波束形成技术,给出了智能天线数字多波束形成的优化算法,利用该算法对均匀圆环阵天线各单元权值进行计算,仿真实现了均匀圆环阵天线多波束方向图,在不同方向上同时得到了多个波束。该算法计算复杂度低,空间隔离度好。阵元呈圆环状分布,具有全向搜索特性,克服了直线阵搜索的缺点。该方法还可用于任意单元构成的不均匀阵列天线,以及波束展宽和扇形波束的形成。 Digital beam synthesis is generated by the integration between antenna technology and digital signal processing technology and is the key technology of space division multiple access （SDMA） used in smart antenna. In this paper, the digital multibeam synthesis algorithm using phase stimulation shaped multibeam synthesis technology is presented. The weight of every element in the homogeneous circle array is calculated using this algorithm and the multibeam pattern of homogeneous circle array is simulated. This algorithm has law calculation complexity and beams gained from different directions have well isolated characteristic. This array has all- round searching characteristic thus overcomes the disadvantages of line array searching. This method can be also applied to muhibeam synthesis for arbitrary set of nonuniform elements, beam width stretch and sector shaped beamforming.

关 键 词： 智能天线 空分多址 相位激励 多波束形成

领　　域： [自动化与计算机技术] [自动化与计算机技术]