联合编译码中信源残留冗余的训练提取方法  

Sequence Training Method in the Joint Source Channel Coding Scheme

作　　者：朱仁峰[1] 周辉[1] 

机构地区：[1]装备指挥技术学院电子工程系,北京101416

出　　处：《装备指挥技术学院学报》2002年第1期78-81,共4页Journal of the Academy of Equipment Command & Technology

摘　　要：在信源信道联合编译码中,利用信源冗余控制信道译码是一个关键的技术.然而由于接收端对发送信源的不确知性,信源冗余的度量和提取便成了一个值得研究的课题.在实验的基础上提出了信源冗余提取的一种有效方法--训练序列提取方法.最后将该方法用于静止图像信源信道联合编译码传输系统,显示并论证了该方法的有效性和可靠性.The use of source residual redundancy to provide error protection is the most critical technology in joint source-channel coding(JSCC) scheme. However, due to the uncertainty of the source, it has always become a researchable problem when extracting and calculating the redundancy. This paper is putting forward a valid method in such area: the Sequence Training Method of Extracting and Calculating Residual Redundancy. The simulating results in the last part have proved its validity and robustness in the case of joint source channel coding of static image transmission system.

关 键 词：信源信道联合编译码 训练序列 残留冗余 训练提取 

分 类 号：TN911.2[电子电信—通信与信息系统]