利用微分几何参数研究小型阵列的布局  

Configuration of Thinned Array Based on Differential Geometry Parameters

作　　者：闵永生[1] 罗景青[1] 

机构地区：[1]电子工程学院,安徽合肥230037

出　　处：《现代防御技术》2012年第4期171-177,共7页Modern Defence Technology

摘　　要：以微分几何为工具,分析和研究了小型阵列的阵列流形的微分几何参数与信号到达方向估计精度之间的关系,并在此基础上推导分析了小型阵列在各个方向上的测向性能与阵列几何布局之间的关系,最后给出小型阵列布局的设计思路。并以五元阵为例,对几种不同的几何布局进行仿真对比和分析,验证了设计思路的正确性。The relationship between differential geometry parameters of array manifold and direction- finding accuracy of array is firstly studied by using the tools of differential geometry. Based on this, the re- lationship between direction-finding accuracy of thinned array and its geometric configuration has been de- duced and analyzed. Finally, a method to improve the performance of direction-finding of array system by adjusting elements＇ positions on the thinned array is proposed. The validity of the method is verified by comparing and analyzing several thinned arrays of five elements with different configurations in computer simulations.

关 键 词：阵列布局 微分几何 小型阵列 测向性能 

分 类 号：TN957[电子电信—信号与信息处理] TP391.9[电子电信—信息与通信工程]