文章摘要
汪源源,王威琪.超声Doppler血流信号瞬时频率的研究[J].声学技术,1993,(4):4~9
超声Doppler血流信号瞬时频率的研究
Research of instantaneous frequency for Doppler ultrasound flow signals
投稿时间:1993-07-05  修订日期:1993-08-11
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作者单位
汪源源 复旦大学电子工程系, 上海 200433 
王威琪 复旦大学电子工程系, 上海 200433 
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中文摘要:
      本文介绍了利用超声Doppler血流信号瞬时频率估计其平均频率的方法,通过计算机模拟实验和物理流速校刻实验,对比了频谱法、时间域法和瞬时频率法估计超声Doppler血流信号平均频率的精度,指出了瞬时频率法的优点和局限性.
英文摘要:
      The method to estimate the mean frequency of Doppler ultrasound flow signals with instantaneous frequency is described in this paper. The estimation accuracy of spectrum method, time-domain method and instantaneous frequency method are compared by computer simulation experiments and physical velocity experiments. The virtue and limitation of instantaneous frequency method are also pointed out.
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