摘要
为了应付当前雷达面对的严峻挑战,多输入多输出(MIMO)雷达应运而生。随着MIMO雷达技术的发展,改善MIMO雷达的DOA估计性能显得越来越重要。鉴于此,利用ESPRIT算法,在收发共置的均匀线阵MIMO雷达模型基础上,考虑信号多径传播环境,针对单信源情况对算法进行了推导。仿真实验表明,所介绍的算法可以有效估计多径传播情况下单信源的方位信息,使MIMO雷达的DOA估计性能得到改善。
MIMO radar emerges when the times requires to deal with the challenge what the radar is facing now.With the development of MIMO radar,it＇s more and more important to improve the function of DOA estimation.So in this paper,based on transmit-receive community array with uniform linear and multipath effects,we inferred the ESPRIT algorithm using single signal.Finally the simulated results show that the algorithm we inferred is effective in multipath effects.It can get the information about DOA of the single signal.And the MIMO radar＇s function is improved in DOA estimation.
出处
《四川兵工学报》
CAS
2011年第12期14-17,共4页
Journal of Sichuan Ordnance
基金
国家自然科学基金(60272065)
