摘要
在单向传输线路中,当数据传输出现差错时,接收方不能再次申请数据传输。传统数据交换技术无法更正错误数据,导致数据交换不可靠。为此,提出一种新的基于光闸单向传输数据交换技术。光闸单向传输技术在硬件与软件基础上,根据分光单向传输装置工作原理,采用分光装置把源主机系统数据镜像至目标系统,完成数据的单向传输。硬件部分主要由主机和单向隔离传输部分组成,软件部分主要由单向传输控制模块、管理模块以及应用服务模块组成。在单向传输控制模块下,通过RS编码和RS译码实现数据传输时的纠错,给出RS编码过程,求出伴随式值,确定错误位置多项式,通过钱搜索法计算错误位置值,依据错误位置值求出错误值,将错误值添加到错误位置,完成错误更正。实验结果表明,所提技术不仅可靠性高,且传输速率快。
In a one-way transmission line,the receiver cannot apply for data transmission again when data transmission goes wrong. Traditional data exchange technology can not correct erroneous data,resulting in unreliable data exchange. Therefore,a new data exchange technology based on optical gate unidirectional transmission is proposed.On the basis of hardware and software,the optical gate unidirectional transmission technology is based on the principle of the beam splitting one-way transmission device,and uses a splitting device to mirror the data of the source host system to the target system,so as to complete unidirectional transmission of data. The hardware part is mainly composed of mainframe and one-way isolation transmission part. The software part is mainly composed of one-way transmission module,management module and application service module. In the one-way transmission control module,realize data transmission through the RS encoding and decoding of the RS error correction,given the RS encoding process,calculated with value,determine the error location polynomial to calculate the error position value through the money search method,on the basis of the error values for the wrong position,the error value is added to the error location,complete error correct. Experimental results show that the proposed technique not only has high reliability,but also has fast transmission speed.
作者
李承林
LI Chenglin(Guangxi Zhuang Autonomous Region Economic Information Center, Nanning 530022, China;Guangxi Zhuang Autonomous Region Internet Network Center, Nanning 530022, China)
出处
《激光杂志》
北大核心
2018年第4期134-138,共5页
Laser Journal
关键词
光闸
单向传输
数据交换
网络
安全
optical switch
unidirectional transmission
data exchange
network
security
