一种PSTN数字水印信道中纠错算法的性能研究  

Performance Research of Error Correction Algorithms for a Digital Watermark Channel of PSTN

作　　者：郝秋赟[1] 李晔[1] 马晓凤[1] 樊燕红[1] 姜竞赛[1] 

机构地区：[1]山东省计算中心 山东省计算机网络重点实验室,山东济南250101

出　　处：《电声技术》2015年第1期77-79,共3页Audio Engineering

摘　　要：针对一种基于PSTN而设计的数字水印信道,研究适合的信道编码算法。对几种常用的信道编码算法,包括汉明码、BCH码和交织码,进行了测试,从纠错性能和传输速率等方面进行了比较,从而确定了既能保证低误码率又能满足传输速率的信道编码算法,进而应用到上述水印信道中,经测试能够完全符合系统要求。In the paper, for a digital watermark channel based on PSTN ,the suitable channel coding algorithm is studied. Several types of commonly using channel coding algorithms, including Hamming code, BCH code as well as interlaced code, are tested. The suitable channel coding algorithm is determined according to both the error correction performance and the transmission rate. The test results show that the selected algorithm satisfy the system above well.

关 键 词：数字水印信道 汉明码 BCH码 交织码 

分 类 号：TN912.3[电子电信—通信与信息系统]