东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2005, Vol. 26 ›› Issue (7): 633-636.DOI: -

• 论著 • 上一篇    下一篇

OTST-ESPRIT算法及其性能分析

刘福来;汪晋宽;于戈   

  1. 东北大学信息科学与工程学院;东北大学信息科学与工程学院;东北大学信息科学与工程学院 辽宁沈阳　110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2005-07-15 发布日期:2013-06-24
  • 通讯作者: Liu, F.-L.
  • 作者简介:-
  • 基金资助:
    教育部科学技术研究重点项目(02085)

OTST-ESPRIT algorithm and it's performance

Liu, Fu-Lai (1); Wang, Jin-Kuan (1); Yu, Ge (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2005-07-15 Published:2013-06-24
  • Contact: Liu, F.-L.
  • About author:-
  • Supported by:
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摘要： 讨论了无线网络中多径信号角度和时延的联合估计算法,给出了OTST ESPRIT算法·该算法通过使用基于一步特征值分解的OT ESPRIT和OS ESPRIT算法估计多径信号的传播时延和波达方向,有效避免了多次特征值分解,从而降低了TST ESPRIT算法的复杂性·其次给出了多径信号模型联合角度和时延估计的罗克拉美下限,分析了OTST ESPRIT算法的计算复杂性·最后在仿真的基础上对OTST ESPRIT算法的性能进行了讨论·

关键词: ESPRIT, OTESPRIT, OSESPRIT, 波达方向, 时延, 联合估计

Abstract: An OTST-ESPRIT algorithm is proposed after discussing the joint estimation algorithm of direction of arrival (DOA) and delay for multipath signals in wireless network communication environment, delay and DOA are estimated by the OT-ESPRIT algorithm and OS-ESPRIT algorithm in the proposed algorithm, respectively. Only the one-step eigenvalue decomposition (EVD) is needed to estimate delay or DOA, making use of the OT-ESPRIT or OS-ESPRIT algorithm. Multiple EVDs are thus avoided efficiently to lower the complexity of TST-ESPRIT algorithm. Gramer-rao bound of the joint estimation of DOA and delay is then given for the multipath signal model. Computational complexity of the proposed algorithm is analyzed. Some simulations are provided to justify the proposed algorithm.

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