Estimation of propeller shaft rate and vessel classification in multipath environment

Author

Amindavar, Hamidreza ; Moghaddam, Payman P.

Author_Institution

Dept. of Electr. Eng., Amir Kabir Univ. of Technol., Tehran, Iran

fYear

2000

fDate

2000

Firstpage

125

Lastpage

128

Abstract

A problem of interest in a passive sonar system is the demodulation of the wide-band signal received from a vessel´s propeller shaft blades. The signal emitted by the vessel becomes a multipath channel which could render erroneous classification of the vessel using the digitized acoustic signal. A new approach is introduced to determine the propeller shaft rate and the number of propeller blades. The cyclostationarity behavior of the acoustic signals from a vessel is exploited to achieve the desired tasks

Keywords

demodulation; multipath channels; parameter estimation; ships; signal classification; sonar signal processing; underwater acoustic propagation; acoustic signals; cyclostationarity behavior; demodulation; digitized acoustic signal; multipath channel; multipath environment; passive sonar system; passive sonar systems; propeller blades; propeller shaft rate estimation; underwater acoustic sources; vessel classification; wide-band signal; Acoustic emission; Acoustic noise; Blades; Multipath channels; Propellers; Shafts; Signal processing algorithms; Sonar; Wideband; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensor Array and Multichannel Signal Processing Workshop. 2000. Proceedings of the 2000 IEEE

Conference_Location

Cambridge, MA

Print_ISBN

0-7803-6339-6

Type

conf

DOI

10.1109/SAM.2000.877982

Filename

877982