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Three-dimensional imaging using a frequency-domain synthetic aperture focusing technique

机译:使用频域合成孔径聚焦技术的三维成像

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摘要

A frequency-domain method for implementing the synthetic aperture focusing technique is developed and demonstrated using computer simulation. As presented, the method is well suited to reconstructing ultrasonic reflectivity over a volumetric region of space using measurements made over an adjacent two-dimensional aperture. Extensive use is made of both one- and two-dimensional Fourier transformations to perform the temporal and spatial correlation required by the technique, making the method well suited to general-purpose computing hardware. Results are presented demonstrating both the lateral and axial resolution achieved by the method. The effect of limiting the reconstruction bandwidth is also demonstrated.
机译:利用计算机仿真技术开发并演示了一种用于实现合成孔径聚焦技术的频域方法。如所呈现的,该方法非常适合于使用在相邻的二维孔上进行的测量来重建空间的体积区域上的超声反射率。一维和二维傅立叶变换都被广泛使用,以执行该技术所需的时间和空间相关性,从而使该方法非常适合于通用计算硬件。结果表明了该方法获得的横向和轴向分辨率。还证明了限制重建带宽的效果。

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