Abstract:In the ultrasound imaging system, the main shortage of apodization technology is that, there is a better image resolution only in a limited region, out of the region, the resolution is significantly lower. The segment dynamic apodization can make up the shortcoming. After analyzing kinds of the 3dB isograms of the apodization function, the limited region with the best image resolution has been obtained. By way of subleading into the relevant apodization function, the segment dynamic apodization technology is implemented and used to plot the 3dB isogram and simulate the image. Simulation results show that the proposed method of segment dynamic apodization technology, can improve the image quality effectively.