摘要
阵列天线在军用及民用方面具有广泛的应用前景,从超分辨率测向算法方面对均匀圆阵列天线(UCA)的测向技术进行了研究,介绍了UCA输出数据模型及其波束域处理的基本问题,将循环平稳特性与UCA相结合,提出了两种有效的UCA测向算法———波束域Cyclic MUSIC和Cyclic-Root-MUSIC算法;仿真分析表明,它们具有较好的抑制噪声和抗干扰性能,且具有较低的计算量,由于UCA在360°方位角内具有等性能波束形状、天线增益和互耦平衡,其结构具有圆对称性,因此适于车载或机载系统应用。
The array of antennas has a comprehensive perspective in the military and civilian applications. This dissertation researches the direction finding technology of the UCA of antennas from two aspects： the super resolution direction finding algorithms and the systematic performance analysis of antennas. The primary problems of the UCA output data model and its beamspace processing, are inTroduced. By combining the cyclostationarity with UCA, forward two efficient methods of direction finding with UCA： the beamspace Cyclic MUSIC and Cyclic-- Root-- MUSIC algorithms, are grogosed. Based on the simulation analysis , they have the properties of interference and noise suppression and a lower computational complexity. It is suitable to be applied to vechile and air born system , for the UCA is characterized by same beams shape and the balance of antenna gain and cross coupling in 360°azimuth, and its structure characterized by round symmetry.
出处
《计算机测量与控制》
CSCD
2006年第12期1717-1719,1728,共4页
Computer Measurement &Control
