摘要
本文阐述了一种在血流多普勒声谱仪中实现波形自动分类决策的方法．通过计算多普勒信号的最大频率先自动提取声谱图的包络，对其进行分段、平均、归一等处理得到待分类决策的波形，与由临床资料建立的标准波形组进行比较，根据一定的判据将波形分类，最后与临床生理对照得出是否存在疾病的诊断。文中还介绍了实现这种方法的彩色编码声谱仪系统的结构框图．
An automatical classification and decision method of Doppler waveforms for now sonography analySis syStem is described in this paper. The contour of now sonogram can be obtained by e,timating the maximum frequency of Doppler signal, from which we can draw our the curve to be classified. Comparing this curve with the standard curves, we can make some diagnosis decision. The sonography analysis system with this method is also presented.
出处
《声学技术》
CSCD
1995年第1期6-10,共5页
Technical Acoustics
