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Underwater Acoustic Channel Estimation Based on Signal Cancellation

  • Junkai LiuEmail author
  • Yangze Dong
  • Gangqiang Zhang
  • Junqing Zhang
Conference paper
  • 178 Downloads
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 312)

Abstract

Aiming at the requirement of underwater information security transmission, the security of encryption key generation and distribution in underwater acoustic communication is concerned. Key generation technology based on underwater acoustic channel (UAC) estimation can improve the security and real-time generation of encryption keys. In this paper, the idea of estimating the multipath structure of UAC is to retrieve the arrival signal by acquiring the parameters of larger energy Eigen-ray from real arrival signal, and to eliminate the arrival signal of larger energy Eigen-ray path from the real signal through signal cancellation, so as to eliminate the influence of side lobes of larger energy signal to arrival signals of other Eigen-ray path, to improve the estimation performance of multipath structure in underwater acoustic channel. The simulation and experimental results show that the improved algorithm can estimate the multipath structure of underwater acoustic channel more accurately and provide support for the subsequent underwater information security transmission.

Keywords

Underwater acoustic channel Matched filtering Parameters inversion Signal cancellation Channel correction 

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Copyright information

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2020

Authors and Affiliations

  1. 1.National Key Laboratory of Science and Technology on Underwater Acoustic AntagonizingShanghaiChina
  2. 2.Zhejiang UniversityZhoushanChina

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