Use automatic adaptation technique, make real-time adjustment to some parameters of pretreatment, auto-corelation and post-processing, enhance the veracity of fetus heart rate measurement. 3.

• 2、利用自适应控制技术，对预处理，相关算法以及后处理的各种参数进行实时调整，提高胎儿心率测量的准确性。