| 基于整数提升小波和Rice编码的机车信号波形数据的无损压缩方法 |
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| 引用本文： | 赵林海,穆建成.基于整数提升小波和Rice编码的机车信号波形数据的无损压缩方法[J].兰州铁道学院学报,2006,25(3):103-106. |
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| 作者姓名： | 赵林海 穆建成 |
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| 作者单位： | 北京交通大学电子信息工程学院 北京100044(赵林海)，铁道部科技司 北京100844(穆建成) |
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| 摘 要： | 针对铁路现场机车信号实际运用情况,提出了一种基于整数提升小波变换和Rice编码的机车信号记录波形数据的无损压缩方法.该方法利用提升结构的整数小波原位运算实现对信号波形数据的快速预测和更新,再对变换后的数据进行Rice无损压缩编码.实验证明,该方法能够达到对机车信号记录器波形数据进行快速、高效的无损压缩存储的要求.
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| 关 键 词： | 整数提升小波变换 机车信号记录器 无损压缩 Rice编码 |
| 文章编号： | 1001-4373(2006)03-0103-04 |
| 收稿时间： | 2006-03-12 |
| 修稿时间： | 2006年3月12日 |
A Loss-free Compression Method for the Waveform Data of Cab Signaling Recorder Based on Integer Lifting Wavelet Transform |
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| Zhao Linhai,Mu Jiancheng.A Loss-free Compression Method for the Waveform Data of Cab Signaling Recorder Based on Integer Lifting Wavelet Transform[J].Journal of Lanzhou Railway University,2006,25(3):103-106. |
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| Authors: | Zhao Linhai Mu Jiancheng |
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| Institution: | 1. School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, China 2. Bureau of Science and Technology, Ministry of Railways, Beijing 100844, China |
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| Abstract: | According to the practical application of cab signaling device on railway site,a loss-free compression method for the waveform data recorded by cab signaling recorder based on integer lifting wavelet transform and Rice coding is proposed in this paper.This method firstly uses the in situ calculation of integer wavelet with lifting scheme to realize the rapid prediction and updating of signal waveform data,then carries out Rice coding,a loss-free compression coding,on the transformed data.The experiment results show that this method can realize rapid,high efficient and loss-free compressing storage of waveform data recorded by cab signaling recorder. |
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| Keywords: | integer lifting wavelets transform cab signaling recorder loss-less compression Rice coding |
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