RESEARCH ON THE LOSS-LESS COMPRESSION ALGORITHM OF THE ULTRASONIC TESTING OF RAIL

摘要：

A large amount of data is produced in the process of ultrasonic testing of rail,and its necessary to compress the raw data with a loss-less compression algorithm.This paper analyses statistical characteristics of ultrasonic test data of rail,and makes researches on the commonly used loss-less compression algorithm,Huffman compression algorithm and LZW compression algorithm.In order to improve the performance of compression,this paper designs and implements a new loss-less compression algorithm based on the above analysis and then tests the new algorithm with a number of ultrasonic test data files of rail.The test results show that the new algorithm has a relatively high compression ratio and the compression performance is significantly better than Huffman compression algorithm and LZW compression algorithm.

关键词： Ultrasonic testing of rail Loss-less compression LZW Huffman Odd-Even

作者: Shuai-yuan LI Guo-xuan LIAN Zhao-bin PENG

作者单位: State Key Laboratory of Acoustics, Institute of Acoustics,Chinese Academy of Sciences, Beijing, 100190, P.R.China

会议类型: 国际会议

会议名称: The 2015 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2015全国压电和声波理论及器件技术研讨会)

会议地点: 济南

会议语种:英文

页码: 458-461

在线出版日期: 2015-10-30（万方平台首次上网日期，不代表论文的发表时间）