摘要
讨论了一种主要针对机载宽频段雷达侦察接收机（工作频率为２～１８ＧＨｚ）的宽带天线阵列阵元间距配置方案及相应的空间信号到达角（ＤＯＡ）解模糊算法。文中以具有最小冗余度的一维非均匀线阵为例，给出了可以实现信号到达角解模糊的天线阵元间距配置的一个必要条件，并通过一个简化的一维整数搜索算法实现了信号到达角的无模糊估计。本文所述方法，很容易直接推广于二维阵列情况进行空间信号二维到达角的无模糊估计。
A scheme is presented for the design of wide band arrays mainly used in the airborne radar interception receiver and a simplified research algorithm to estimate nonambiguous direction of arrivals (DOAs) of spatial signals correspondingly. The designed unequally spaced array is with minimum redundancy and a necessary condition is presented to decide the distance between the elements in array.It is easy to expend our method to estimate the two dimensions (2D) DOAs of spatial signals. The numerical results show that the scheme is feasible.
出处
《电波科学学报》
EI
CSCD
1999年第4期450-456,共7页
Chinese Journal of Radio Science
基金
原电子部预研基金资助项目!(28.2.3.2)
关键词
阵元
雷达
阵列
DOA
宽带天线
解模糊
Wide band array
Array configuration
Nonambiguous DOAs estimation
