Abstract:
为提高血栓检测的准确率,本文提出了基于Hilbert-Huang Transform(HHT)的血栓多普勒信号的分析方法,通过把血栓多普勒信号分解为内蕴模式函数,利用Hilbert变换建立了血栓多普勒信号的时间-频率-能量三维Hilbert谱分布。对大脑中动脉多普勒信号进行分析,结果表明:本文的方法对血栓具有较高的识别率,对临床有重要的指导意义。
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Year: 2007
Language: Chinese
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30 Days PV: 4
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