摘要
本文提出了一种易在微机上实现的测量超声Doppler血流信号平均频率(平均速度)的相关方法,这种方法克服了常规的过零检测法检具有的先天缺陷,是一种新型的时域实时处理技术。
In this paper, correlation method of measuing mean frequency (meanveloeity) of ultrasonic Doppler blood flow signal has been proposed. Thedefect of the zero crossing can be overcome by using the method. It is anew realtime processing technique in the time-domain.
关键词
血流信号
超声
平均频率
微机
ultrasoud
mean frequency
correlation
microcmputer
