Covert underwater acoustic communication using dolphin sounds
نویسندگان
چکیده
منابع مشابه
Dolphin Sounds-Inspired Covert Underwater Acoustic Communication and Micro-Modem
A novel portable underwater acoustic modem is proposed in this paper for covert communication between divers or underwater unmanned vehicles (UUVs) and divers at a short distance. For the first time, real dolphin calls are used in the modem to realize biologically inspired Covert Underwater Acoustic Communication (CUAC). A variety of dolphin whistles and clicks stored in an SD card inside the m...
متن کاملCovert underwater acoustic communications.
Low probability of detection (LPD) communications are conducted at a low received signal-to-noise ratio (SNR) to deter eavesdroppers to sense the presence of the transmitted signal. Successful detection at intended receiver heavily relies on the processing gain achieved by employing the direct-sequence spread-spectrum (DSSS) technique. For scenarios that lack a sufficiently low SNR to maintain ...
متن کاملAn underwater acoustic communication scheme exploiting biological sounds
Underwater acoustic (UWA) communications have attracted a lot of interest in recent years motivated by a wide range of applications including offshore oil field exploration and monitoring, oceanographic data collection, environmental monitoring, disaster prevention, and port security. Different signaling solutions have been developed to date including non-coherent communications, phase coherent...
متن کاملAn Approach to Detect Dolphin Whistle from Underwater Sounds
This paper handles the issue of identifying the whistle of a dolphin in the presence of noise. When a recorded underwater signal containing other sounds is given to a system, it detects and identifies the presence of dolphin whistle. Analyzing the extracted underwater sounds gives meaningful information about the environment. Also, the presence of a particular underwater species and their behav...
متن کاملUnderwater Acoustic Communication
Keywords: acousticc communicationss coherentt equalizationn channel estimationn multi-pathh diversity c o m biningg beamformingg multiuser detectionn underwater data networkss sparse equalizationn blind equalizationn multirate adaptive lteringg cyclostationary statistics .
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 2013
ISSN: 0001-4966
DOI: 10.1121/1.4795219