【摘要】 <正> 医学信号处理如心电、胃电处理的特点之一是涉及三维信号及其合成信号的处理。现有的体表胃电提取方法只能提取一个平面(正面)内的信息,丢失了其余两个平面内的信息。我们已经报告了一种提取三维胃电信息的正交导联系统。本文报告三维合成电信号谱分析的一些理论问题及初步结果。更多还原

【Abstract】 One of the features in processing medical signals, for example, eletrocardiac and electrongastric signals, is that deals with processing three dimensional signals and their composite signals. By The present methods acquiring electrogastric signals from the abdomen surface [1—3], the electrogastric information only in a plane can be acquired, the eletrogastric information from the other two planes are lost. We had reported a method of aepuiring three dimensional electrogastric information by an orthogonal leads system [4]. In this paper the theoretical problems and the primary results of the spectrum analysis compositing electrogastric signals from three dimensional signals are reported.更多还原