合成孔径聚焦超声成像方法研究

Research of Synthetic Aperture Focus Technology in Ultrasonic Imaging

合成孔径聚焦成像方法(SAFT)具有分辨率高、能在近场区工作的优点,是超声成像领域发展起来的新技术。文中介绍了合成孔径超声成像的原理,根据换能器阵列的声场辐射理论建立了数学模型,利用MATLAB对模型进行了数值仿真,最后进行了合成孔径超声成像实验。实验结果表明,合成孔径成像方法能够有效提高成像系统的分辨率。

Synthetic aperture focusing technique （SAFT） has the advantage of high resolution and being used in near-field. The principle of SAFT and simulation results using MATLAB is introduced. The testing results illustrates that this technology has high ultrasound formation ability, high lateral resolution and good performance.