摘要
论述了超声Doppler血流平均速度时域估计的方法.根据计算机模拟Doppler血流合成信号,对频率分析法、过零检测法和时域估计法进行了对照分析,说明时域估计法优于过零检测法,与频率分析法相当,而系统较易实现.
A time-domain estimation method of mean velocity for Doppler Ultrasound blood flow signal is described. With computer generated Doppler signals, methods of frequency-analysis, zero-crossings and time-domain estimation have been compared. Finally it is pointed out that time-domain estimation method is not only easy to realize, but also as good as frequency-analysis and better than zero-crossings.
出处
《复旦学报（自然科学版）》
CAS
CSCD
北大核心
1993年第2期183-188,共6页
Journal of Fudan University：Natural Science
关键词
超声
多普勒
血液流动
平均速度
ultrasound
Doppler
velocity profiles
time-domain estimation
frequency-analysis
zero-crossings
simulation signal
