CAJ | 학술논문

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。
수자도상전수구유수거량대，실시성요구고적특점，우기재무선전수중경용역수도외계배경적간우，위료강저무선전수과정중적오마솔，제고전수련로적가고성，설계료일충기우HDLC협의적전수련로。분석료수자도상적표시형식화HDLC협의적격식，제출료재전수련로중실현수거투명전수적해결방법병급출료부분원대마。최후대본문묘술적전수련로진행료방진측시，방진결과표명，재무선전수배경하，채용HDLC협의적전수련로가유효강저오마솔，전수질량득도명현제고。
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.