现代雷达Issue(2)：27-32,6.DOI:10.16592/j.cnki.1004-7859.2016.02.007
基于 DFT 的 MIMO 雷达发射方向图设计
Transmit Beampattern Design for MIMO Radar Based on Discrete Fourier Transform
李奕蓉 1胡捍英1
作者信息
- 1. 信息工程大学导航与空天目标工程学院，郑州450001
- 折叠
摘要
Abstract
In order to ensuring good matching performance and low spatial cross-correlation of multiple-input multiple-output ( MI-MO) radar beampattern, as well as decreasing computational complexity, an algorithm for transmit beampattern design based on discrete Fourier transform( DFT) is proposed in this paper.First, a cost function contains matching performance and spatial cross-correlation is constructed, then a close-form of transmit signal covariance matrix is given by DFT.This method can avoid high com-plexity caused by convex optimization efficiently.Theoretical analysis indicates that the designed covariance matrix can fully satisfy basic constraints of beampattern design model, meanwhile it can minimize the cost function.Simulation and performance analysis shows that computational complexity of the algorithm is low, and the designed beampattern has good matching performance and low spatial cross-correlation.关键词
MIMO雷达/发射方向图/离散傅里叶变换/低复杂度/匹配性能/空域互相关Key words
MIMO radar/transmit beampattern/discrete Fourier transform/low complexity/matching performance/spatial cross-cor-relation分类
信息技术与安全科学引用本文复制引用
李奕蓉,胡捍英..基于 DFT 的 MIMO 雷达发射方向图设计[J].现代雷达,2016,(2):27-32,6.
