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。
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.
出处
《现代电子技术》
2010年第23期17-20,共4页
Modern Electronics Technique
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
non-destructive testing
synthetic aperture focusing technique
wave-envelope decomposition
matching filtering
angle-dependent convolution
