水声通信数据无损压缩方法的对比研究  

Research of lossless compression algorithms for acoustic communication data

作　　者：吴文强[1] 

机构地区：[1]西北工业大学,陕西西安710072

出　　处：《现代电子技术》2012年第9期103-105,共3页Modern Electronics Technique

摘　　要：为了选择适合水声通信数据无损压缩的算法,对哈夫曼压缩算法和LZ77压缩算法进行了对比研究。通过C语言编程实现两种算法的压缩,并利用水声通信数据获得压缩结果。对两种算法的压缩率和压缩效率对比分析之后,得出结论:对于水声信号,使用哈夫曼算法将获得更好的压缩率和压缩速率。尤其是哈夫曼算法的压缩速率远远优于LZ77算法。In order to select the proper compression algorithm for the underwater acoustic data,the Huffman compression algorithm and the LZ77 compression algorithm were compared.Using the C language and the underwater acoustic communication data,different results were obtained.After compare the different results,concluded that： For the acoustic signal,using the Huffman algorithm can obtain better compression ratio and compression rate.Especially,the Huffman compression algorithm is much faster than the LZ77 algorithm.

关 键 词：无损数据压缩 水声通信 哈夫曼算法 字典模型算法 

分 类 号：TN911.21[电子电信—通信与信息系统]