Using the indirect method to extract fetal ECG is noninvasive and operated easily. However, fetal ECG is very weak, and often subject to a variety of serious noise interference extracted from the mother surface.
间接法提取胎儿心电具有无创、操作方便的优点,但是从母体体表提取到的胎儿心电信号非常微弱且受到各种噪声的严重干扰,有效提取和分离胎儿心电是间接法提取的一个难题。
参考来源 - 基于模糊神经网络的胎儿心电提取·2,447,543篇论文数据,部分数据来源于NoteExpress
There are two methods of disclosing cash flows from operating activities: the direct method and the indirect method.
披露经营活动产生的现金流量有两种方法:直接法和间接法。
This paper is to discuss the unity of opposites in terms of the direct speech act and the indirect speech act, direct tests and indirect tests, and the direct method and the indirect method.
这种对立统一主要体现在直接言语行为和间接言语行为、直接测试和间接测试以及直接教学法和间接教学法三方面。
A direct means is required to calibrate the indirect method.
要求用直接测定法校正间接测定法。
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