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- Analysis of Wavelet Scalogram of Blood Flow Ultrasonic Doppler Signal. 小波尺度图分析法及其在超声血流多普勒信号中的应用。
- Title: Analysis of Wavelet Scalogram of Blood Flow Ultrasonic Doppler Signal. 关键词:小波变换;付里叶变换;多普勒信号;血流;频谱分析
- Discussion about the algorithms on estimating the foetal heart rate from the ultrasonic Doppler signal 由超声多普勒频移信号估计胎心率算法探讨
- Karlsson.M Berson.T Helgason.R T Geirsson,L.Pourcelot Effects of fetal and maternal breathing on the ultrasonic Doppler signal due to fetal heart movement 2000(1 李昕.;胡波
- ultrasonic doppler signals 超声多普勒信号
- ultrasonic Doppler signal 超声多普勒信号
- The Multifunction Doppler Signal Simulator. 多功能的多普勒信号模拟器。
- This method has been successfully used in the CDL-82 Ultrasonic Doppler Velocimeter. The method can also be used to process other instant cycle signals with small change. 本方法已成功用于CDL-82型超声多普勒流速仪中,略加修改也可用于其它瞬时周期信号的处理。
- The myocardial blood flow (MBF) was determined by ultrasonic doppler. 超声多普勒方法测定心肌血流量;
- The average vein diameter of DDVI was greater than DVI by ultrasonic Doppler( P <0 01). DDVI组平均静脉管径显著大于DVI组 ;P <0 0 1;
- With the use of microcomputer with ultrasonic Doppler instrument 203 times of STI were automeasured. 应用微机自动测量STI超声多普勒仪对203人次进行测试。
- This paper introduces the principle and implementation of fetal monitor based on DSP and ultrasonic Doppler theory. 文中介绍基于DSP的超声多普勒胎儿监护仪的工作原理及实现方法。
- Analysis of Doppler Signals from Carotid Blood Flow by Multi-characteristic Method. 利用多普勒信号多参数分析检测颈动脉血流。
- The average vein diameter of DDVI was greater than DVI by ultrasonic doppler(P<0.01). DDVI组平均静脉管径显著大于DVI组,P<0.01;
- The accuracy can be enhanced with optical heterodyne technique and the phase measurement of Doppler signals. 对多普勒信号进行光学外差处理并对多普勒信号进行测相,可以提高测量的精度。
- Color ultrasonic Doppler, CT and selective angiography are very important for the early diagnosis of the disease. 彩色超声、CT、选择性血管造影对该病早期诊断具有重要意义。
- B. External fetal monitoring. The FHR is measured by focusing an ultrasound beam on the fetal heart. The fetal monitor interprets Doppler signals. 外监护。通过集中超声波束于胎儿心脏来描记胎心率,胎儿监护翻译多普勒信号。
- Methods This paper retrospectively analyzes 23 cases of ultrasonic characteristics of Budd-Chiari Syndrome,operated with colorful ultrasonic Doppler diagnosis technique. 方法回顾性分析23例由彩色多普勒超声诊断的并经下腔静脉造影或手术证实的布加氏综合征患者的超声图像特征。
- From the nalysis of simulated Doppler signals of known characteristics, it is seen that this technique can be used to detect the blood flow turbulence and vortex. 对已知特性的模拟超声多普勒信号的分析发现:该技术可以用于对湍流和涡流超声多普勒信号的分析。
- By use of 3-D ultrasonic doppler velocimeter,the turbulence characteristics of water flow in the spur dike head and backflow region are observed and analyzed systematically. 利用三维超声学多普勒流速仪对丁坝坝头附近水流和回流区水流的紊动特性进行了系统的观测和分析,得到了丁坝坝头和回流区的水流特性及紊动动能的分布规律。