摘要
本文介绍了 DBF 的基本特点与实现方案。在具有严格约束的最小功率自适应算法与采样矩阵梯度算法的基础上,提出了一种能同时形成一组自适应扫描多波束的 DBF 算法。文中以一个12元线阵为例,对该算法进行了计算机模拟,给出了大量的模拟结果。结果表明,每个自适应波束在干扰源方向都形成了较深的“零点”,而在约束方向则保持不变的功率。
This paper introduces the basic characteristics and realizable options ofdigital beamforming(DBF).It presents a DBF algorithm which can instantaneously form aset of adaptive scanning beams on the basis of the constrained least power adaptivealgorithm and the sample matrix gradient algorithm.Taking a twelve elements linear arrayas a example,it has the algorithm simulated in a computer,and gives a lot of data andcurves of simulation.Theresult shows each adaptive beam has deeper“null”in jammingthe source direction and the power constant in constrained direction.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1990年第1期30-33,共4页
Journal of University of Electronic Science and Technology of China
关键词
数字波束
算法
天线
雷达
DBF
digital beamforming
adaptive algorithm
least power
sample matrix
