低噪声心电放大器的设计是生物医学电子学研究课题之一，是对心电信息进行数据采集与处理的重要环节。

The design of a low noise electrocardiosignal amplifier, as a research subject of biomedical electronics, is a key link in data acquisition and processing of electrocardiosignal.

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本文首先简要地介绍了医学电子学中人体超声信号的检测、处理及其特征提取所采用的方法及其技术特点。

Here medical Electronic methods and techniques are mainly introduced to detect, analyse and extract feature for human medical ultrasound signals.

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医学电子学已成为高等医学院校的选修或必修课程，但目前的教学状况阻碍了教学质量的提高，其教学改革势在必行。

Medical electronics has become an elective or the compulsory course in medical colleges, but the teaching condition has restricted the quality of teaching, so the educational reform is imperative.

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