A non-real-time underwater acoustic communication system based on WeChat

作者：Cai Jing Jing; Jiang Xia Lin; Huang Hao Qian; Ding Qian; Su Wei

来源：7th IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2017, 2017-10-22 To 2017-10-25.

DOI：10.1109/ICSPCC.2017.8242423

• Acoustic speech
• CCK coding
• Communication distance
• Communication rate
• MFSK
• Time-varying characteristics
• Underwater acoustic channels
• Underwater acoustic communication system

In this paper, we design a non-real-time underwater acoustic speech communication system similar to WeChat. Its communication rate reaches 2400bps when the communication distance is less than 5km. Due to the time-varying characteristic of underwater acoustic channel, we choose a short code named compensation code keying (CCK) soft spread spectrum without reducing the communication rate. As for speech coding, we adopt the Multi-Band Excitation (MBE) model. We refine the system parameters through computer simulations and pool experiments. Finally, the performance of this underwater speech communication system is confirmed by pool experiment.

• 出版日期2017
• 单位厦门大学