| 合成孔径聚焦成像算法研究 |
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| 引用本文： | 宋志明,李金龙,王黎,高晓蓉,王泽勇.合成孔径聚焦成像算法研究[J].现代电子技术,2010,33(23):17-20. |
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| 作者姓名： | 宋志明 李金龙 王黎 高晓蓉 王泽勇 |
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| 作者单位： | 西南交通大学物理科学与技术学院,四川成都610031 |
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| 摘 要： | 合成孔径聚焦成像技术与传统的超声成像方法相比，可以通过较低的工作频率和较小的换能器孔径获得较好的分辨率，目前已在无损检测中获得广泛应用。随着科技的进步，合成孔径聚焦算法也日益成熟。对三种常用的合成孔径聚焦算法的原理进行了分析，总结了各自特点及优势。在实际应用中，合理选择成像算法，能够有效提高成像质量。
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| 关 键 词： | 无损检测 合成孔径聚焦技术 波包原子分解 匹配滤波 角度相关卷积 |
Research on Synthetic Aperture Focusing Imaging Algorithm |
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| SONG Zhi-ming,LI Jin-long,WANG Li,GAO Xiao-rong,WANG Ze-yong.Research on Synthetic Aperture Focusing Imaging Algorithm[J].Modern Electronic Technique,2010,33(23):17-20. |
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| Authors: | SONG Zhi-ming LI Jin-long WANG Li GAO Xiao-rong WANG Ze-yong |
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| Affiliation: | (College of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China) |
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| Abstract: | Compared with the traditional ultrasound imaging methods, the synthetic aperture focusing imaging technology can obtain better resolution by lower frequency and smaller transducer aperture, so it is widely used in the nondestructive testing. With the advancement of science and technology, the synthetic aperture focusing algorithm is increasingly mature. The principles of three common synthetic aperture focusing algorithms are analyzed in this paper. The advantages of each algorithm are summarized. A rational selection of imaging algorithms in practical application can effectively improve the imaging quality. |
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| Keywords: | non-destructive testing synthetic aperture focusing technique wave-envelope decomposition matching filtering angle-dependent convolution |
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