摘要
根据机载声呐工作特点和声信号传输的特殊需要,提出一种全数字化的单芯同轴电缆双向多路传输方法。利用该方法所研制的实验系统,其数据传输速率达到3～6 Mb/s,传输距离为500～1000 m,误码率小于10-7。该系统已成功地替代了传统的多芯电缆数据传输系统,其突出优点是:数据传输速率高、传输距离远、信号动态范围宽、抗干扰能力强,且体积小重量轻,特别适用于传输电缆的体积和重量受到严格限制,且需要远距离双向传输多种高速水下声信号的场合应用。
According to the working characteristic of the airbrone sonar and acoustic signal transmission, a kind of digitized bi-directional data transmission method through a single-lead coaxial cable is proposed in this paper. The test system designed with this method has a data transmission rate of 3 - 6 Mb/s, transmission range of 500 - 1000 m, and code error rate less than 10 . The system has substituted the traditional multi-lead cable, and it has such advantages as high speed transmission rate, long transmission distance, large dynamic range, good ability of anti-disturbance, small volume and light weight. It is very suitable for the case that the volume and weight of cable are strictly limited, and long distance bi-directional underwater sound signals transmission is necessary.
出处
《声学学报》
EI
CSCD
北大核心
2003年第1期52-56,共5页
Acta Acustica
基金
航空基础科学基金资助项目(99F53062)
船舶工业国防预研基金资助项目(2000J42.2.8)
关键词
机载声呐
声信号
高速双向多路传输
工作特点
Acoustic wave transmission
Acoustic waves
Cable television systems
Cables
Errors
