基于光电复合缆的水声信号采集发射传输系统

摘要

As we all know,electromagnetic environment underwater is complex,electrical signal on the electric cable underwater is easy to be jammed by electromagnetic environment underwater.And with distance increasing,electrical signal is jammed and decreases more.So long distance transferring underwater is very fit for photoelectric composite cable,that signal for fiber and electric power for electric cable.Therefore this paper designs a kind of collecting-launching and transferring system of underwater acoustic based on photoelectric composite cable,which can solve the problem.This design transmit electrical signal of collecting-launching to photo signal on the equipment and computing chassis.It uses fiber to transfer photo signal of underwater acoustic point to point.And electric power for equipment is transferred by the electric cable of photoelectric composite cable.%众所周知水下电磁环境复杂,在水下采用电缆传输电信号非常容易受到海洋电磁环境干扰,并且随着距离的增加,电信号受到干扰和衰减也就越大.因此水下中长距离的信号传输采用光电复合缆传输是一个比较好的选择,光纤用来传递水声信号,电缆用来传输电力.因此本文设计了一种基于光电复合缆的水声信号采集发射传输系统,能够很好地解决上述问题.本设计将要采集和发射的水声模拟信号在采集发射端和主机端转换成光信号,端到端之间的传输采用光信号,而采集发射端的供电则由光电复合缆的电缆提供.