Time gain control system for improving ultrasonic receiving performance

The invention discloses a time gain control system for improving ultrasonic receiving performance, which comprises an FPGA module, DAC modules and TGC modules, and is characterized in that the FPGA module is connected with a plurality of DAC modules, each DAC module is independently connected with one TGC module, and each DAC module is used for independently driving the corresponding TGC module. According to the invention, each TGC module is driven by different DAC modules, so that the integrity of signals can be ensured, a single DAC module is not used for driving a plurality of loads, each TGC module can be controlled by controlling the DAC module, and gain control can be carried out more finely for different channels instead of unified control of all existing channels. 本发明公开了一种提高超声接收性能的时间增益控制系统，包括FPGA模块、DAC模块和TGC模块，所述FPGA模块连接多个DAC模块，每个DAC模块独立连接一个TGC模块，每个DAC模块用于独立驱动对应的TGC模块。本发明每个TGC模块都由不同的DAC模块进行驱动，可以保证信号的完整性，而不是使用单个DAC模块驱动多个负载，每个TGC模块都可以通过控制DAC模块进行控制，能够更精细针对不同通道进行增益控制，而不是现有的所有通道统一控制。