摘要
自适应阵列处理能提高通信雷达等电子系统的抗干扰能力，因而获得了广泛的应用。许多重要的高速实时自适应阵列处理算法均需要采用一系列Ｇｉｖｅｎｓ旋转处理将输入数据矩阵变成三角阵。标准的Ｇｉｖｅｎｓ旋转包含开方运算，该运算是限制有关算法速度的一个重要因素。文中提出一种基于坐标旋转计算机技术的无开方Ｇｉｖｅｎｓ旋转处理方法，可以显著提高自适应算法的处理速度，并给出了这一方法的推导、Ｇｉｖｅｎｓ处理节点运算式和采用，这种方法的ＱＲ分解自适应阵并行处理算法的计算机模拟结果。
Adaptive array processing can greatly improve anti interference capability of communications and radar systems,and thus has wide applications.Many important high speed adaptive array processing algorithms include a series of Givens rotations,which transform an input data matrix into a triangnlar matrix.A typical Givens rotation has square root operation,which is one of the key factors limits the algorithm speed.This paper presents a new method to implement the Givens rotation without root operation based on coordinate rotation digital computer (CORDIC).The derivation of the method,the structure of the operation node,and a simulation result of QR Decomposition adaptive algorithm based on the method are given in the paper.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1997年第6期565-569,共5页
Journal of University of Electronic Science and Technology of China
基金
国家自然科学基金
"九五"预研基金
关键词
通信雷达
CORDIC
GIVENS
信号处理
communication radar
coordinate rotation digital computer
Givens rotations
adaptive array
