| 脉冲多普勒信号的模拟方法 |
| |
| 引用本文： | 汪源源 Fish,PJ.脉冲多普勒信号的模拟方法[J].复旦学报(自然科学版),1995,34(3):241-246. |
| |
| 作者姓名： | 汪源源 Fish PJ |
| |
| 作者单位： | 复旦大学电子工程系 |
| |
| 摘 要： | 脉冲多普勒技术已经成为医学临床无损检测血流的一种有效手段。利用计算机模拟的脉冲多普勒信号。可以为各种脉冲多普勒信号处理方法的研究提供信号源，从而了解各种不同处理方法的性能。文中提出一种脉冲多普勒信号的模拟方法，它可以从信号的平均频率曲线和频谱带宽出发，俣成正常血流和异常血流下的脉冲多普勒信号，为从脉冲多普勒信号研究血流中的滴和涡流提供了便利。
|
| 关 键 词： | 脉冲多普勒 超声多普勒 计算机模拟 血流 检测 |
The simulation method of pulsed Doppler signal |
| |
| Wang Yuanyuan.The simulation method of pulsed Doppler signal[J].Journal of Fudan University(Natural Science),1995,34(3):241-246. |
| |
| Authors: | Wang Yuanyuan |
| |
| Abstract: | Pulsed Doppler ultrasound has become a valuable tool in the noninvasive measurement of flow in the medical clinic. Pulsed Doppler signals simulated in computer can be used as the signal resource in the research of pulsed Doppler signal processing,which can make it possible to compare the perfomance of different processing methods.A simulation method of pulsed Doppler signal is described in this paper. This simulation model is based on the mean frequency waveform of pulsed Doppler signal and the bandwidth of signal spectrum. Pulsed Doppler signals of normal flow and abnormal flow can be generated according to this model, which makes it easier to analyse the turbulence and vortex of flow from its pulsed Doppler signal. |
| |
| Keywords: | ultrasound pulsed Doppler simulation |
| 本文献已被 CNKI 维普 等数据库收录！ |
