| 时域均衡器在测井电缆传输系统中的应用 |
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| 引用本文： | 张菊茜,陈伟,孟悦新,李谦,周建琼.时域均衡器在测井电缆传输系统中的应用[J].测井技术,2011,35(2):192-194. |
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| 作者姓名： | 张菊茜 陈伟 孟悦新 李谦 周建琼 |
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| 作者单位： | 中海油田服务有限公司;电子科技大学电子工程学院; |
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| 摘 要： | 测井电缆信道的冲激响应具有较长的拖尾,导致严重的子信道间干扰,从而影响OFDM系统的传输速率.利用时域均衡器可以截短电缆信道冲激响应,使之拖尾长度小于OFDM符号的循环前缀长度,从而消除ICI.介绍了一种适于DSP(Digital Signal Processing)软件实现的时域均衡器,该时域均衡器用于基于OFDM技...
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| 关 键 词： | 测井电缆 数据传输 时域均衡 正交频分复用 |
Application of Time Domain Equalizer in the Logging Cable Transmission System |
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| ZHANG Juqian,CHEN Wei,MENG Yuexin,LI Qian,ZHOU Jianqiong.Application of Time Domain Equalizer in the Logging Cable Transmission System[J].Well Logging Technology,2011,35(2):192-194. |
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| Authors: | ZHANG Juqian CHEN Wei MENG Yuexin LI Qian ZHOU Jianqiong |
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| Affiliation: | ZHANG Juqian,CHEN Wei,MENG Yuexin,LI Qian,ZHOU Jianqiong(1.Well Tech of China Offshore Oilfield Services Limited,Beijing 101149,China,2.School of Electronic Engineering,University of Electronic Science and Technology,Chengdu,Sichuan 610054,China) |
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| Abstract: | As an effective method to solve the problem in logging cable high-speed data transmission,OFDM(Orthogonal Frequency Division Multiplexing) technology is currently being used for logging high-speed data transmission system.However,the logging cable channel impulse response has a longer tail(usually greater than the OFDM symbol cyclic prefix length),which will lead to severe inter sub-channel interference(ICI),thus affecting the transmission rate of OFDM systems.The channel impulse response is reduced by time... |
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| Keywords: | logging cable data transmission time domain equalization orthogonal frequency division multiplexing |
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