›› 2015, Vol. 28 ›› Issue (6): 162-.

• 论文 • 上一篇    下一篇

基于差分时间平滑的多径信号DOA估计

彭金龙,陈建春,郭亚萍   

  1. (西安电子科技大学 电子工程学院,陕西 西安 710071)
  • 出版日期:2015-06-15 发布日期:2015-06-20
  • 作者简介:彭金龙(1989—),男,硕士研究生。研究方向:基于差分时间平滑的多径信号DOA估计。E-mail:525545597@qq.com

DOA Estimation of Multipath Signals Based on Differential Temporal Smoothing

PENG Jinlong,CHEN Jianchun,GUO Yaping   

  1. (School of Electronic Engineering,Xidian University,Xi'an 710071,China)
  • Online:2015-06-15 Published:2015-06-20

摘要:

针对移动通信环境中,多径信号与独立信号共存的混合信号模型DOA估计问题,依据差分方法与时间平滑原理,提出一种改进的DOA算法。该算法增加了可分辨信源个数,同时提高了相干信源DOA估计的性能,仿真实验证明,该算法在混合信号模型下解相干性能优于传统空间平滑法。

关键词: 时间平滑, 差分, 多径信号, 移动通信

Abstract:

An improved DOA algorithm is proposed for the mixed signal model where independent signals and multipath signals coexist in the mobile communication environment based on the differential method and temporal smoothing principle.The algorithm increases the number of signal sources resolved and promotes the DOA estimation performance of coherent signals.Simulation results show that the algorithm has better performance in the mixed signal model than the traditional spatial smoothing method.

Key words: temporal smoothing;differential;multipath signals;mobile communication

中图分类号: 

  • TN929.5