摘要
简要介绍了图象压缩编解码的一般方法和传输误码对压缩图象的影响 ,重点探讨了压缩图象无线传输技术中的误码控制问题 ,提出了基于混合纠错 (HEC)方式的定长数据帧编码方法和关键参数的选取准则 ,在降低误码率的条件下保持了传输的高效性 .
Error control technology,which is the main content of wireless transmission technology of compressed digital image,is discussed in this paper. A constant-length data frame encoding method based on HEC & the criterion for selecting its key parameter are proposed. The result of the experiment shows that the method reduces error rate of wireless transmission and maintains the efficiency as well.
出处
《四川大学学报（自然科学版）》
CAS
CSCD
北大核心
2004年第4期764-767,共4页
Journal of Sichuan University(Natural Science Edition)
关键词
数字图象
无线传输
误码控制
digital image
wireless transmission
error control
