| 基于DPCM算法的测井数据压缩 |
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| 引用本文： | 李宏,薛伟,闫铁,王菲菲.基于DPCM算法的测井数据压缩[J].现代电子技术,2011(22):14-16. |
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| 作者姓名： | 李宏 薛伟 闫铁 王菲菲 |
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| 作者单位： | 东北石油大学电气信息工程学院;东北石油大学石油工程学院; |
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| 基金项目： | 黑龙江省教育厅科学技术研究项目(11551026) |
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| 摘 要： | 由于现实中测井数据数据量大,数据传输实时性强,这就要求传输效率要尽可能地高。但是目前大多数油田仍采用直接传输采样数据的方式。因此提出了一种基于DPCM算法的测井数据传输方式。针对编码方式的特点,设计了编码流程图。对测井数据进行了相关的预处理,再进行编码实现。经仿真实验后发现,差值编码能够有效地去除数据之间的冗余,在保证编码压缩后的测井数据与原始测井数据误差不超过5%的情况下,经压缩后的测井数据量为原始测井数据量的1/2,因此测井数据的传输效率提高到了2倍。
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| 关 键 词： | 差分脉冲编码调制 Matlab 测井数据 数据压缩 |
DPCM-based Algorithm for Logging Data Compression |
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| LI Hong,XUE Wei,YAN Tie,WANG Fei-fei.DPCM-based Algorithm for Logging Data Compression[J].Modern Electronic Technique,2011(22):14-16. |
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| Authors: | LI Hong XUE Wei YAN Tie WANG Fei-fei |
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| Institution: | LI Hong1,XUE Wei1,YAN Tie2,WANG Fei-fei1(1.Electrical Information Engineering institute,Northeast Petroleum University,Daqing 163318,China,2.College of Petroleum Englneering,Northeast Petroleurm University,China) |
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| Abstract: | The data transmission efficiency is required as must high as possible in reality because the logging data is large,and its data transmission needs strong real-time property.But anyway,most of oilfields still adopt the direct transmission style for the sample data nowadays.Therefore,an algorithm based on DPCM is proposed for logging data compression.The encoding flowchart was designed according to the characteristics of coding method.The relevant pretreatment of the logging data is conducted,and then the rea... |
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| Keywords: | differential pulse code modulation(DPCM) Matlab logging data data compression |
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