Design of a General Hardware in the Loop Underwater Communication Emulation System

Underwater acoustic communication plays an important role in underwater wireless sensor network. Different from terrestrial radio channel, modeling of channel is very challenging due to its unique and dynamic characteristics. In order verify the proposed algorithms, a general emulation platform which can reduce verification cost has wide application prospect. this paper, we design hardware loop system based on LabVIEW MATLAB software real transducer. system, calls script achieve algorithm implementation, then uses DAQmx send receive data through acquisition card. The supports variety modulation demodulation methods, such as multiple frequency-shift-keying(MFSK), multi-carrier frequency-shift-keying(MCFSK), orthogonal frequency division multiplexing(OFDM), etc. addition, detect frame efficiently, propose light-weight synchronous algorithm. To function systems, lake test sea are conducted for different algorithms.