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1·The signals of fetal heart beating, uterine contraction and mark were processed with the DSP TMS320LF2407A. Meanwhile, the volume control of the heart beat sound was realized by the DSP module.

由TMS320LF2407A构成的DSP模块完成对胎心信号、宫缩压力信号和胎动标记请求信号的实时处理，同时实现心跳的音量控制。