基于field 2的传统超声成像算法。可用于波束形成，合成孔径等成像模型。-Traditional ultrasound imaging algorithm based on field 2. Can be used for beam forming, and other synthetic aperture imaging model.

用于超声成像的matlab仿真，有需要的可参考一下(Matlab simulation for ultrasound imaging, there is a need for reference.)