Research on high-speed processing of array ultrasonic signal based on FPGA

In array ultrasound imaging, because the software needs to process a large amount of raw data, it is not easy to improve the imaging rate of the system. This paper uses FPGA to realize the high-speed processing of ultrasound images based on array ultrasound transducers with 64 array signals intercepted in parallel. After that, it performs histogram equalization on the image in the FPGA, and finally sends the processed result to the computer for display. This study can significantly improve the array ultrasound signal processing rate, thereby increasing the continuous imaging frame rate of the imaging system. In addition, when designing the pixel value accumulation module, the system innovatively uses a dedicated RAM instead of a counter array for statistics, which can reduce hardware resources.