基于DSP生物医学信号处理论文(2)

摘要

生物医学信号处理是生物医学工程学的一个重要研究领域，也是近年来迅速发展的数字信号处理技术的一个重要的应用方面，正是由于数字信号处理技术和生物医学工程的紧密结合，才使得我们在生物医学信号特征的检测、提取及临床应用上有了新的手段，因而也帮助我们加深了对人体自身的认识。生物医学仪器包括了诊断仪器和治疗仪器两大类。在诊断仪器中要寻找对诊断有意义的具有某种特征的信号或信号的某种特征量。在治疗仪器中同样需要确定特征信号的存在或信号特征量的大小去控制治疗部分的工作。一般说来，信号并不能直接提供这些信息，它们需要应用信号处理方法去提取。生物医学信号属于强噪声背景下的低频微弱信号,它是由复杂的生命体发出的不稳定的自然信号,从信号本身特征、检测方式到处理技术,都不同于一般的信号。

关键词:生物医学；信号处理；强噪声；低频微弱

Abstract

Biomedical Signal Processing Biomedical Engineering is an important area of research, but also the rapid development in recent years, digital signal processing technology, an important application, precisely because digital signal processing technology and the close integration of biomedical engineering, it makes us in biomedical signal feature detection, extraction and clinical applications with new tools, and thus help us to deepen their understanding of the human body. Biomedical instrumentation includes equipment diagnostic instruments and treatment of two categories. Diagnostic instrument in the diagnosis to look for some characteristics of a meaningful signal or a signal of some kind of characteristic quantities. In the treatment of the instrument features the same need to determine signal characteristics signal the presence or amount of treatment to control the size of some of the work. In general, the signal does not directly provide this information, they require the