基于HDLC协议的数字图像传输链路设计  

Design of Digital Image Transmission link Based on HDLC Protocol

作　　者：苏桂芝[1] 杨志谦[1] 邵威[1] 夏勇[1] 

机构地区：[1]中国电子科技集团第三十八研究所,合肥230088

出　　处：《火控雷达技术》2012年第2期55-58,共4页Fire Control Radar Technology

摘　　要：数字图像传输具有数据量大,实时性要求高的特点,尤其在无线传输中更容易受到外界环境的干扰,为了降低无线传输过程中的误码率,提高传输链路的可靠性,设计了一种基于HDLC协议的传输链路。分析了数字图像的表示形式和HDLC协议的格式,提出了在传输链路中实现数据透明传输的解决方法并给出了部分源代码。最后对本文描述的传输链路进行了仿真测试,仿真结果表明,在无线传输环境下,采用HDLC协议的传输链路可有效降低误码率,传输质量得到明显提高。Since digital image has characteristics of large amount of data and high requirement for real-time, and it is es- pecially interfered by external condition in wireless transmission, a transmission link based on HDLC protocol is designed to reduce code error rate in wireless transmission and improve reliability of transmission link. The presentation form of digital images and format of HDLC protocol are analyzed, and the solution to implement data transparent transmission in transmission link is presented and some source codes are given. Finally, the depicted transmission link is simulated and tested. The simulated results show that using transmission link based HDLC protocol can effectively decrease error code rate and make transmission quality to be improved obviously in wireless transmission condition.

关 键 词：数字图像 HDLC协议 数据透明传输 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]