| 阵列声波测井信号调理与首波提取技术研究 |
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| 引用本文： | 张嘉伟,师奕兵,王志刚,刘西恩.阵列声波测井信号调理与首波提取技术研究[J].中国测试技术,2006,32(4):4-5,100. |
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| 作者姓名： | 张嘉伟 师奕兵 王志刚 刘西恩 |
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| 作者单位： | 1. 中海油田服务股份有限公司技术中心,北京,101149
2. 电子科技大学,自动化工程学院,四川,成都,610054 |
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| 摘 要： | 本文分析阵列声波测井中声波全波列信号的特点，采用前置通道信号调理技术对声波信号进行预处理以便于首波提取，并阐述一种首波到时的提取技术及实现算法。前置通道信号调理电路的设计采用了自动增益控制技术，可实现增益的自动调节。首波提取采用了短窗一长窗能量比算法，能够精确地检测到首波。
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| 关 键 词： | 阵列声波 信号调理 首波 横波 全波列 |
| 文章编号： | 1672-4984（2006）04-0004-02 |
| 收稿时间： | 2006-02-17 |
| 修稿时间： | 2006-02-172006-04-25 |
Research of signal process and detecting head wave of acoustic array |
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| ZHANG Jia-wei,SHI Yi-bing,WANG Zhi-gang,LIU Xi-en.Research of signal process and detecting head wave of acoustic array[J].China Measurement Technology,2006,32(4):4-5,100. |
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| Authors: | ZHANG Jia-wei SHI Yi-bing WANG Zhi-gang LIU Xi-en |
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| Affiliation: | 1.School of Automation Engineering Ueiversity of Electronics Science and Tednology,Chengdu 610054,China; 2.Technical Center-China Oilfield Services Co.Ltd, Beijing 101149,China |
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| Abstract: | This paper analyzed the characteristic of the acoustic full wavefonn of acoustic array.Head wave could be easily picked up through signal processing.A method of detecting and correcting head wave of acoustic array was also introduced.The gain of receiver input channel could be controlled automatically.The head wave of acoustic array could be accurately detected by the method of energy ratio of short-window and long-window. |
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| Keywords: | Acoustlc anray Signal process Head wave Shear wave Acoustlc full waveform |
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