Cyclic Spectral Analysis via Negative Entropy for Maritime Vehicles Deniz Taşitlari Için Negatif Entropi Kullanilarak Çevrimsel Izge Analizi


Tunce K. U., Akgül T.

31st IEEE Conference on Signal Processing and Communications Applications, SIU 2023, İstanbul, Turkey, 5 - 08 July 2023 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/siu59756.2023.10223847
  • City: İstanbul
  • Country: Turkey
  • Keywords: Cavitation noise, CMC, DEMON, FSC, Negative Entropy
  • Istanbul Technical University Affiliated: Yes

Abstract

Propeller-induced cavitation noise is used for the detection and classification of maritime vehicles. Wideband cavitation noise is traditionally modeled as an amplitude-modulated signal and analyzed with an envelope demodulator. Modeling cavitation noise with cyclostationary random processes has culminated in improved detection levels provided by the envelope spectrum. This study offers a method to improve the envelope spectrum by calculating negative entropy in the dominant frequency bands of cavitation.