水声调制解调器数据传输技术的研究与实现

Research and Implementation of the Data Transmission Technique on Underwater Acoustic Modem

该文研究了π/4-DQPSK调制解调的原理及其在水声modem数据传输技术的应用。通过采用TI公司的TMS320VC5416芯片,在DSP硬件开发系统环境下仿真实现了水声MODEM的数据传输。解决了π/4-DQPSK调制解调等DSP算法的几个关键问题,并在此基础上对整个通信系统进行了调试。调试结果证明了基于π/4-DQPSK调制算法应用于水声modem数据传输技术中可获得较好的效果,可以作为实际系统数据传输的一种可靠的调制方式。

This paper discusses the principle of π/4-DQPSK modulation and demodulation and its application in data transmission technique on underwater acoustics modem. By using TI＇s TMS320VC5416chip , the project realized the data transmission technology on underwater acoustics modem in simulation based on the system environment of DSP hardware environment. It resolves several key problems in DSP algorithm such as π/4-DQPSK modulation and demodulation. With the solutions to the problems, it has debugged the entire communication system. The debugging result testifies that it works well for the algorithm of π/4-DQPSK modulation and demodulation applied in data transmission technology on underwater acoustics modem. It can be a dependable modulation method for practical system data transmission.