High-Speed High-Frequency Acoustic Modem for Image Transmission in Very Shallow Waters

Author

Beaujean, Pierre-Philippe J.

Author_Institution

Florida Atlantic Univ., Dania Beach

fYear

2007

fDate

18-21 June 2007

Firstpage

1

Lastpage

6

Abstract

A one-way, high-speed, high-frequency acoustic modem (HS-HFAM) operating between 260 kHz and 380 kHz has been developed to transmit compressed underwater images and status information in real-time. High data rates are made possible using a high-resolution decision feedback equalizer with parallel algorithm for tracking and compensating large Doppler. Experimental results show that this modem achieves 13298.2 information bits per joule at 87768 information bits per second and at a range of 88 m in ports and shallow waters.

Keywords

modems; oceanographic equipment; remotely operated vehicles; underwater acoustic communication; underwater vehicles; HS-HFAM system; bit rate 87768 bit/s; frequency 260 kHz to 380 kHz; image transmission; one-way high-speed high-frequency acoustic modem; shallow waters; status information transmission; Acoustic transducers; Decision feedback equalizers; Doppler shift; Frequency; Image communication; Modems; Reverberation; Sea surface; Underwater acoustics; Underwater cables; Acoustic; High-speed; Modem; Underwater;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS 2007 - Europe

Conference_Location

Aberdeen

Print_ISBN

978-1-4244-0635-7

Electronic_ISBN

978-1-4244-0635-7

Type

conf

DOI

10.1109/OCEANSE.2007.4302225

Filename

4302225