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From : BostonUniversityECE
Added: May 8, 2009
Team 9: The AQUA PH2ONE UQC Underwater Telephone Team Members: Beldar Boci, Theodore Deligianides, Jimmy Nguyen, Thomas Whaley, Jonathan Wong Customer: Dr. Ron Morrissey (NUWC) The current UQC communication system used by the U.S. Navy requires custom designed hardware to modulate/demodulate the signal with the proper carrier frequency. Therefore, if an issue arises within the system, the cost of repair is extremely high. Our project provides a cost-effective primarily software-based solution for members of the Navy to have short-term underwater communication. With MATLAB and C++, the software module is able to sample sound from a microphone input, filter it, amplitude modulate the signal and output the resulting signal to the soundcard output jack and on through the transmitting hydrophone underwater. The receiving hydrophone will receive the modulated signal in water and send it to the soundcard input jack of another computer. Our software will then demodulate the signal and filter it so that it may be played through speakers. In addition to the software, our project comes with a push-to-talk key circuit, which allows each end of the communication system to switch between listening mode and talking mode. For more information: Part 2: http://www.youtube.com/watch?v=BreUVh2GiwI
Category : Tech

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