Journal of Systems Engineering and Electronics ›› 2014, Vol. 25 ›› Issue (1): 26-33.doi: 10.1109/JSEE.2014.00004

• ELECTRONICS TECHNOLOGY • Previous Articles     Next Articles

Self-adjusting decision feedback equalizer for variational underwater acoustic channel environments

Yasong Luo*, Zhong Liu, Shengliang Hu, and Jingbo He   

  1. College of Electronics Engineering, Naval University of Engineering, Wuhan 430033, China
  • Online:2014-02-25 Published:2010-01-03


Aimed at the abominable influences to blind equalization algorithms caused by complex time-space variability existing in underwater acoustic channels, a new self-adjusting decision feedback equalization (DFE) algorithm adapting to different underwater acoustic channel environments is proposed by changing its central tap position. Besides, this new algorithm behaves faster convergence speed based on the analysis of equalizers’ working rules, which is more suitable to implement communications in different unknown channels. Corresponding results and conclusions are validated by simulations and spot experiments.