直接序列扩频水声通信技术研究

水声通信技术随着当代通信技术与计算机技术的发展逐渐在通信领域中占据重要地位。由于水声通信与无线电通信的极大不同，所以在研究的问题和难度上都存在着很大的差异。多径干扰是水声通信信道与无线电通信环境中共同存在的干扰影响。为解决多径干扰问题，首先对扩展频谱通信技术进行介绍，并重点对直接序列扩展频谱通信技术的组成和功能进行研究，通过系统仿真，分析直接序列扩展频谱通信的特点，验证直接序列扩展频谱水声通信系统抗多径干扰的性能。

Research on direct sequence spread spectrum underwater acoustic communication

Underwater acoustic communication technology with the development of contemporary communications technology and computer technology increasingly dominant position in the communications field. Due to the great difference between underwater acoustic communication and radio communication, the problem and the difficulty of the study have different differences. Between underwater acoustic communication channel and radio communication environment, multipath interference is the main interference influence. For overcome the difficulty, this article first introduces the spread spectrum communication techniques, with a focus on the composition and function of direct sequence spread spectrum communication technology research, and through the system simulation, analysis of the characteristics of direct sequence spread spectrum communication. The anti-interference in multipath performance of direct sequence spread spectrum communication is verified.