摘要
本文首先讨论了稀布阵子阵级自适应数字波束形成技术的特点,在稀布阵特性的理论分析基础上,设计了一种稀布天线阵模型.接着针对三种天线子陈划分:规则不重叠子阵、规则重叠子阵和不规则不重叠子阵,分析了产生栅瓣现象的原因,并且比较了它们的特性.最后根据稀布阵的特点,提出了两种子阵划分方法:子阵单元规则排列法和子阵单元数一定法.计算模拟表明,其具有良好的性能.
The self-adaptive digital beam forming technology in sparse antenna subarray is discussed in this paper. Based on the analysis of the related principle of sparse antenna array,a model of the array is proposed. Aimed at three different kinds of subarray division: regular non-overlapping, regular overlapping and irregular non-overlapping subarray, the cause of producing the grating lobes is analyzed,and their characteristics are compared. Finally,two kinds of subarray division are given by the property of sparse antenna array: regular arranging and fixed number of antenna elements in the subarray. A large number of computer simulation results demonstrate the performance of these proposed methods.
出处
《系统工程与电子技术》
EI
CSCD
1997年第7期31-37,共7页
Systems Engineering and Electronics
关键词
相控阵雷达
天线阵
模型
设计
Self-adaptive,Sparse antenna array,Subarray division.
