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本文从常规透镜成象原理引伸到聚焦扫描成象和合成孔径成象,说明了合成孔径成象技术对提高成象质量的潜在能力.综述了美国斯坦福大学Kino教授实验室在合成孔径声成象方面的研究进展(作者曾参与这方面工作).其中包括:用于超声无损检测的合成孔径成象的几种安排;针对物体镜面反射问题而提出来的新的选择性孔径方法及其计算机模拟和实验结果等.最后,本文将简要介绍该实验室的实时成象系统及部分实验结果.
This paper extends from the conventional lens imaging principle to focusing scanning imaging and synthetic aperture imaging, and illustrates the potential of synthetic aperture imaging technology to improve the imaging quality.It is summarized that the Koran professor’s laboratory at Stanford University in the synthetic aperture acoustic imaging (The author has participated in this work), including: several arrangements for synthetic aperture imaging for non-destructive ultrasonic testing; a new selective aperture method for object specular reflection and its computer simulation And experimental results, etc .. Finally, this article will briefly introduce the real-time imaging system of the laboratory and some experimental results.