A QPSK-CDMA Based Acoustic Communication System for Multiple Underwater Vehicles

作者：Zhao Zixin^*; Guo Shuxiang

来源：Information-An International Interdisciplinary Journal, 2010, 13(3): 719-729.

• Underwater acoustic communication
• QPSK
• CDMA
• Synchronization
• Multiple underwater vehicles

This paper proposes an underwater acoustic communication system based on QPSK-CDMA (Quadrature Phase Shift Keying-Code Division Multiple Access) for multiple underwater vehicles. Through this system, multiple underwater vehicles can communicate with the console on the water surface simultaneously successfully. The communication system is composed of channel encoding and decoding, spread spectrum modulation and demodulation, RF (Radio Frequency) modulation, Rake Receiver and synchronization. As an important factor that affects the quality of acoustic communication, underwater acoustic channel is also taken into account. The simulation results indicate that it is feasible to use this system to accomplish underwater communication reliably due to the small BER (Bit Error Ratio).

• 出版日期2010-5