| 一种血流声谱仪中波形自动分类决策的方法 |
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| 引用本文： | 汪源源,吴晓峰,王威琪.一种血流声谱仪中波形自动分类决策的方法[J].声学技术,1995,14(1):6-10. |
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| 作者姓名： | 汪源源 吴晓峰 王威琪 |
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| 作者单位： | 复旦大学电子工程系 |
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| 摘 要： | 本文阐述了一种在血流多普勒中实现波形自动决策的方法，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。
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| 关 键 词： | 血流声谱仪 波形自动分类 决策 频谱分析 |
| 收稿时间： | 1994/7/18 0:00:00 |
An automatical classification and decision method of Doppler waveforms for flow sonography analysis system |
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| WANG Yuanyuan,WU Xiaofeng and WANG Weiqi.An automatical classification and decision method of Doppler waveforms for flow sonography analysis system[J].Technical Acoustics,1995,14(1):6-10. |
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| Authors: | WANG Yuanyuan WU Xiaofeng and WANG Weiqi |
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| Affiliation: | Electronic Engineering Department, Fudan University, Shanghai 200433;Electronic Engineering Department, Fudan University, Shanghai 200433;Electronic Engineering Department, Fudan University, Shanghai 200433 |
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| Abstract: | 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. |
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