Ultrasonic synthetic aperture imaging numerical simulation and measurement

The concept of Ultrasonic Synthetic Aperture Imaging (USAI) is coming from Synthetic aperture Radar and has the advantage of improving the lateral resolution of the ultrasound image. The process of USAI uses a wide beam transducer to conduct linear scaning, and uses numerical computation techniques to perform the image reconstruction steps of Fourier transform, phase compensation, and inverse Fourier transform. In our research, we have conducted numerical simulation on various subjects using the USAI reconstruction algorithm and also conducted the USAI measurement on a phantom system. This study shows that the implementation of the USAI is successful, it improves the lateral resolution of the ultrasound image.