| 超声Doppler血流信号瞬时频率的研究 |
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| 引用本文： | 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,1993,12(4):4-9. |
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| 作者姓名： | 汪源源 王威琪 |
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| 作者单位： | 复旦大学电子工程系，复旦大学电子工程系 上海 200433，上海 200433 |
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| 摘 要： |
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| 关 键 词： | 超声波诊断 血流信号 频率 |
| 收稿时间： | 1993/7/5 0:00:00 |
| 修稿时间： | 1993/8/11 0:00:00 |
Research of instantaneous frequency for Doppler ultrasound flow signals |
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| Wang Yuan-yuan and Wang Wei-qi.Research of instantaneous frequency for Doppler ultrasound flow signals[J].Technical Acoustics,1993,12(4):4-9. |
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| Authors: | Wang Yuan-yuan and Wang Wei-qi |
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| Affiliation: | Department of electronic engineering Fudan University;Department of electronic engineering Fudan University |
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| Abstract: | 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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