| 编码激励用于岩石物性超声成像的仿真 |
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| 引用本文： | 吴何珍,和泰名.编码激励用于岩石物性超声成像的仿真[J].CT理论与应用研究,2010,19(4):45-52. |
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| 作者姓名： | 吴何珍 和泰名 |
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| 作者单位： | 中国地震局地球物理研究所,北京100081 |
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| 基金项目： | 中央级公益性科研院所基本科研业务专项资助项目 |
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| 摘 要： | 数字编码技术在雷达、医学等方面广泛成功应用使得将其引入地震探测中成为可能。本文为将数字编码技术引入地震探测中,进行了岩石物性成像仿真实验。首先讨论了编码超声成像原理,分析了编码技术的规律和特点。其次通过激励Golay码,利用FieldⅡ软件包进行了岩石物性超声成像的仿真,并比较了仿真结果的成像分辨率。结果表明,编码技术是提高超声成像质量的有效方法。结果可用于指导野外编码地震探测。
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| 关 键 词： | 地震探测 Golay码 编码超声激励 FieldⅡ仿真 |
Simulation Study on Coded Excitation in Rock Property Ultrasound Imaging |
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| WU He-zhen,HE Tai-ming.Simulation Study on Coded Excitation in Rock Property Ultrasound Imaging[J].Computerized Tomography Theory and Applications,2010,19(4):45-52. |
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| Authors: | WU He-zhen HE Tai-ming |
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| Institution: | (Institute of Geophysics,China Earthquake Administration,Beijing 100081,China) |
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| Abstract: | The succeed application of the digital encoded technology in the radar,the medical aspects make it possible to use this technology in the seismic detection.In order to introduce the digital encoded technology to seismic detection,the simulation study on coded excitation in rock property imaging carried out.Firstly,we introduce the principles of coded ultrasound imaging and the characteristics on the coded technology.Secondly,through the excitation of Golay codes,ultrasound imaging of the rock property testing has been completed using Field Ⅱ package and compared the simulation result.The results proved that encoded technology is the effective method improving the image quality.The results can be used to guide the seismic detection in the field. |
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| Keywords: | seismic detection：Golay codes：coded ultrasonic excitation：Field Ⅱ simulation |
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