Application of Coded Excitation Signals for Measurement of Rock Ultrasonic Wave Velocity
文献类型：期刊论文
| 作者 | Wu, He-Zhen3; Zhu, Wei4,5; He, Tai-Ming1,3; Liu, Zheng-Yi1,3; Lan, Xiao-Wen2 |
| 刊名 | PURE AND APPLIED GEOPHYSICS
 |
| 出版日期 | 2020 |
| 卷号 | 177期号:1页码:487-496 |
| 关键词 | Rock ultrasound testing barker code golay-coded excitation pulse compression |
| ISSN号 | 0033-4553 |
| DOI | 10.1007/s00024-019-02166-8 |
| 英文摘要 | The accurate measurement of ultrasonic velocity requires the detected waveforms to have a high signal-to-noise ratio (SNR). Coded excitation technique (CET) can improve the SNR without resolution loss. This study introduces the basic principles of phase-coded technology and gives a synthetic and experimental evaluation of Barker and Golay codes. All the results show that CET can increase the SNR, but the gain in SNR (GSNR) is lower than the theoretical value. The velocity measurements on red sandstone and granite verify that the Barker code has better pulse compression performance than the Golay code. Besides, the application of Barker-coded signals on the velocity monitoring of uniaxially compressed rock proves that the Barker CET is reliable. |
| WOS关键词 | PULSE ; SYSTEM |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000519917900033 |
| 出版者 | SPRINGER BASEL AG |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95479]  |
| 专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
| 通讯作者 | Wu, He-Zhen |
| 作者单位 | 1.Chinese Earthquake Adm, Inst Geophys, Key Lab Seism Observat & Geophys Imaging, Beijing 100081, Peoples R China 2.Chinese Earthquake Adm, Inst Crustal Dynam, Beijing 100085, Peoples R China 3.Chinese Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China 5.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, He-Zhen,Zhu, Wei,He, Tai-Ming,et al. Application of Coded Excitation Signals for Measurement of Rock Ultrasonic Wave Velocity[J]. PURE AND APPLIED GEOPHYSICS,2020,177(1):487-496. |
| APA | Wu, He-Zhen,Zhu, Wei,He, Tai-Ming,Liu, Zheng-Yi,&Lan, Xiao-Wen.(2020).Application of Coded Excitation Signals for Measurement of Rock Ultrasonic Wave Velocity.PURE AND APPLIED GEOPHYSICS,177(1),487-496. |
| MLA | Wu, He-Zhen,et al."Application of Coded Excitation Signals for Measurement of Rock Ultrasonic Wave Velocity".PURE AND APPLIED GEOPHYSICS 177.1(2020):487-496. |
入库方式： OAI收割
来源：地质与地球物理研究所
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