测井技术2011，Vol.35Issue(2)：192-194,3.
时域均衡器在测井电缆传输系统中的应用
Application of Time Domain Equalizer in the Logging Cable Transmission System
张菊茜 1陈伟 2孟悦新 1李谦 1周建琼1
作者信息
- 1. 中海油田服务有限公司油田技术,北京101149
- 2. 电子科技大学电子工程学院,四川成都611731
- 折叠
摘要
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 domain equalizer (TEQ) so it is not exceed the length of the cyclic prefix, thereby the ICI is eliminated. This paper presents a TEQ which is suitable for DSP(Digital Signal Processing) software. The proposed TEQ can greatly improve the transmission rate of logging cable high-speed data transmission on the basis of OFDM technology.关键词
测井电缆/数据传输/时域均衡/正交频分复用Key words
logging cable/ data transmission/ time domain equalization/ orthogonal frequency division multiplexing分类
天文与地球科学引用本文复制引用
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):192-194,3.
