四川大学学报（自然科学版）2011，Vol.48Issue(2)：343-348,6.DOI:10.3969/j.issn.0490-6756.2011.02.018
一种新的基于四阶累积量的DOA估计算法
A new DOA estimation algorithm based on fourth-order cumulant
摘要
Abstract
A new algorithm based on fourth-order cumulant matrix is presented for uniform linear array.There are massive redundant data in the fourth-order cumulant matrix for MUSIC-like algorithm.So a new method of constructing the fourth-order cumulant matrix is created in the proposed algorithm.In the case of keeping the array extension ability, the fourth-order cumulant matrix constructed using the new method eliminates massive redundant data of the fourth-order cumulant matrix in MUSIC-like algorithm and reduces the order of the matrix.So compared with MUSIC-like algorithm, the proposed algorithm not only has the same performance of DOA estimation, but also brings the benefits of significant reduction of computational complexity.Computer simulations are carried out to illustrate the validity of the new method.关键词
DOA估计/均匀线阵/MUSIC-like算法/四阶累积量Key words
DOA estimation/ uniform linear array/ MUSIC-like algorithm fourth-order cumulant分类
信息技术与安全科学引用本文复制引用
朱敏,何培宇..一种新的基于四阶累积量的DOA估计算法[J].四川大学学报（自然科学版）,2011,48(2):343-348,6.基金项目
国家自然科学基金(61071159) （61071159）
