Covert underwater acoustic communication using dolphin sounds

Covert underwater acoustic communication using dolphin sounds

In November 2012, an experiment demonstrating biological mimicry method for covert underwater acoustic communication (UAC) was conducted at Lianhua Lake in Heilongjiang China. Dolphin whistles were used for synchronization while dolphin clicks were used as information carrier. The time interval betw...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America Vol. 133; no. 4; pp. EL300 - EL306
Main Authors: Liu, Songzuo, Qiao, Gang, Ismail, Asim
Format: Journal Article
Language:English
Published: United States 01-04-2013
Subjects:
Acoustics
Algorithms
Animals
Cetacea
Channels
Conveying
Dolphins
Dolphins - physiology
Models, Theoretical
Oceans and Seas
Rakes
Signal Processing, Computer-Assisted
Singing
Sound Spectrography
Synchronism
Time Factors
Underwater acoustics
Vocalization, Animal
Water
China, People's Rep
Online Access:Get full text
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Summary:In November 2012, an experiment demonstrating biological mimicry method for covert underwater acoustic communication (UAC) was conducted at Lianhua Lake in Heilongjiang China. Dolphin whistles were used for synchronization while dolphin clicks were used as information carrier. The time interval between dolphin clicks conveys the information bits. Channel estimates were obtained with matching pursuit (MP) algorithm, which is useful for sparse channel estimation. Adaptive RAKE Equalization was employed at the receiver. Bit error rates were less than 10(-4) with 37 bits per second data rate in the lake trial.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:0001-4966
1520-8524
DOI:10.1121/1.4795219