相关干涉仪测向天线阵优化设计研究  

Research on Optimization Design of Antenna Array for Correlative Interferometer

作　　者：黄雪梅[1] 

机构地区：[1]中国西南电子技术研究所,四川成都610036

出　　处：《计算机仿真》2016年第10期142-147,347,共7页Computer Simulation

摘　　要：测向天线阵是影响相关干涉仪系统测向精度的重要因素。测向天线阵布局不合理,容易产生测向模糊,引起测向精度的严重下降。针对相关干涉仪测向天线阵如何布局避免测向模糊的问题,提出布阵时通过计算二维相关系数来验证布阵合理性,避免测向模糊。仿真结果表明,二维相关系数方法比起传统蒙特卡罗方法规避测向模糊点,计算时间短,且测向模糊点计算简单可靠。另外,通过大量仿真,总结了常用均匀圆阵个数不同时的最佳尺寸,为工程中相关干涉仪布阵提供参考。Antenna array is an important factor which affects the accuracy of the Direction- Finder. The layout of the antenna array is unreasonable,and the ambiguities of DF is easy to produce,and the precision of DF is seriously reduced. Aiming at the problem of how to design antenna array distribution to avoid angle estimation ambiguity,the paper proposed a method of computing the two- dimensional correlation to verify the battling rationality. The simulation results show that compared with the traditional Montecarlo method,the method of two- dimensional correlation is more simple and more reliable,and the time- consuming is shorter. In addition,through plenty of simulations,the best aperture of uniform circular array with different array element was summarized,which can be a reference for the correlative interferometer embattling in engineering application.

关 键 词：相关干涉仪 二维相关图 测向模糊 圆阵 

分 类 号：TJ01[兵器科学与技术—兵器发射理论与技术]