数字化宽带测向系统中天线阵列基线设计  

Design of Baseline of Antenna Array for a Digital Wideband Direction-finding System

作　　者：姜勤波[1] 刘志强[1] 马红光[1] 

机构地区：[1]第二炮兵工程学院,西安710025

出　　处：《电讯技术》2011年第9期6-9,共4页Telecommunication Engineering

摘　　要：为了进一步提高干涉仪的测向精度,增强对宽带信号的适应能力和扩展系统的工作频率范围,论述了在工作频率范围和测向精度约束下如何设置天线阵列基线的问题,得到了系统测向不模糊的条件和测向角的最优线性无偏估计(BLUE)解。仿真实例表明,该结论正确,并可以指导数字化宽带测向系统整体设计和优化。In order to improve the direction-finding（DF） precision, enhance the ability of measuring the wideband signal and expand the working frequency range, how to design the baseline of the antenna array to keep large working frequency range and good DF precision is discussed. The condition of solving DF ambiguity and the Best Linear Unbiased Estimation（BLUE） solution of the DF angle are obtained. The simulation shows the results is correct and can be used to design and optimize the whole digital wideband DF system.

关 键 词：宽带测向系统 干涉仪 天线阵列基线 相位差测量 解模糊 

分 类 号：TN97[电子电信—信号与信息处理]