Long-range underwater acoustic information transmission through MFSK modulation

Wen Ma, Jianguo Huang, Qunfei Zhang

科研成果: 期刊稿件文章同行评审

摘要

A kind of long-range underwater acoustic information transmission technique based on M-ary Frequency Shift Keying (MFSK) modulation is studied, and the demodulation method based on spectrum estimation is proposed. For each received symbol, we calculate the Fourier spectrum of its fourth-order cumulant's diagonal slices. Then we take the location of the spectrum peak as carrier frequency and conduct demodulation according to the relationship between carrier frequency and transmitted information. The ocean experiment results indicate that transmission of 4 bit/s over 80 km distance was achieved.

源语言英语
页(从-至)370-375
页数6
期刊Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering
12
4
出版状态已出版 - 12月 2004

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