期刊名称：Current Journal of Applied Science and Technology
印刷版ISSN：2457-1024
出版年度：2015
卷号：9
期号：1
页码：12-18
语种：English
出版社：Sciencedomain International
摘要：The occurrence of high random bit error rates alongside long burst errors in playback audio signal recorded on compact disk (CD) poses a problem beyond what the usual Cross Interleaved Reed-Solomon Code (CIRC) may handle. In this paper we propose a technique that makes use of the orthogonality properties of Walsh code to handle these types of errors. Results obtained show that the technique can correct for burst errors exceeding 7000 bits and random errors at Signal to Noise Ratio of -5dB at the recording channel. This performance exceeds that of CIRC in terms of maximum correctible burst error length and random error correction rate. The proposed technique will effectively correct long burst and high random bit errors in playback audio signals recorded on optical CD.
关键词：Walsh code;random error;burst error;CIRC;audio signal
