Robust interference cancellation of chirp and CW signals for underwater acoustics applications

Research output: Contribution to journalArticlepeer-review


We focus on mitigating strong interferences that can jam underwater acoustics emissions aimed for detection or communications. We consider two types of interferences: narrowband like continuous waveform and wideband like chirp. Both the types are assumed to be strong, such that, without interference cancellation, performance is poor. We offer two interference canceling algorithms, each corresponding to a different interference type. The two algorithms are designed to mitigate strong interference, while maintaining the desired signal intact. These algorithms can be executed sequentially to manage both types of interference simultaneously. Our solution takes advantage of the sparsity of the underwater acoustic channel, as well as the assumed correlation of the interference signals. Numerical simulations, as well as results from a sea experiment, show that our algorithms significantly reduce the effect of strong interferences for the fast time-varying and long-delay spread underwater acoustic channel.

Original languageEnglish
Pages (from-to)4405-4415
Number of pages11
JournalIEEE Access
StatePublished - 2 Jan 2018

Bibliographical note

Publisher Copyright:
© 2018 IEEE.


  • Interference canceling
  • Noise canceling
  • Single carrier interference
  • Underwater acoustic communication
  • Underwater signal detection
  • Wideband interference

ASJC Scopus subject areas

  • General Computer Science
  • General Materials Science
  • General Engineering


Dive into the research topics of 'Robust interference cancellation of chirp and CW signals for underwater acoustics applications'. Together they form a unique fingerprint.

Cite this