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Estimating the spectral bandwidth of pulsed Doppler signal with the stationarising method 利用平稳性提高法估计脉冲多普勒信号的频谱宽度
Pulse Doppler Signal Processing on Conical Scan Radar System 圆锥扫描脉冲多普勒雷达信号处理
Radar Pulse Doppler Signal Processing Using DMTI in Series with FFT 采用DMTI串联FFT的雷达信号处理系统
pulsed Doppler signal 脉冲式多普勒信号
The Multifunction Doppler Signal Simulator. 多功能的多普勒信号模拟器。
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。
The detective ability of airborne pulsed Doppler radar is often greatly degraded in active jamming environment. 摘要在有源干扰下，机载脉冲多普勒雷达检测性能往往受到严重影响。
RVOT blood flow parameters were measured with pulsed Doppler echocardiography (PW) for every case. 用脉冲多普勒超声(PW)测量各组病例RVOT血流频谱有关参数。
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
Abstract: The main functions and performance parameters of the IFD Receiver for CINRAD/CB Pulsed Doppler Weather Radar are presented. 文章摘要: 介绍CINRAD/CB脉冲多普勒天气雷达数字中频接收机的主要功能和技术性能.
The main functions and performance parameters of the IFD Receiver for CINRAD/CB Pulsed Doppler Weather Radar are presented. 介绍CINRAD/CB脉冲多普勒天气雷达数字中频接收机的主要功能和技术性能。
Methods: The all data were collected through temporal window by TCD using pulsed Doppler (2MHZ) in HAPE patients identified in clinic. 方法:将已确诊的HAPE患者,与颞窗通过低频脉冲多普勒(2MHZ),获得颅内脑底动脉环上的主要动脉的多普勒超声频移信号,进行TCD检测。
Methods:M mode echocardiography and pulsed Doppler were used to obtain the variable of fetal cardiac structure and function in diabetic pregnancies. 方法:应用超声心动图测量糖尿病孕妇胎儿心脏结构与功能的各项指标及其与不同孕周之间的关系。
Finally, pulsed Doppler was used to collect spectra and measure the peak systolic velocity （PSV）, end- diastolic velocity, resistance index and pulsate index. 最后用脉冲式多普勒采集频谱，测量收缩期峰值血流速度、舒张末期血流速度、阻力指数和搏动指数等。
Oki T,Tabata T,Yamada H,et al.Clinical application of pulsed Doppler tissue imaging for assessing abnormal left ventricular relaxation.Am J Cardiol,1997,79(7):921-928. 杨好意邓又斌常青毕小军向慧娟潘敏黎春蕾.;定量组织速度成像和组织追踪法对扩张型心肌病患者左心室收缩功能的研究[J]
Methods：Pulsed Doppler of echocardiography was adopted to determine the diastolic function of the left ventricle in CHD before and after the infusion of Chi Wu Jia. 方法：应用脉冲多普勒超声心动图对冠心病心绞痛患者静脉输入刺五加前后测定左室舒张功能。
Signal processing model is established, which is based on single pulse angle tracking system, mainly including AGC, Doppler signal detecting and angle tracking. 信号处理模型则根据单脉冲体制角度跟踪系统的处理模式建立,包括自动增益控制、多普勒信号检测和角跟踪处理等;
Pulsed Doppler ultrasound and color Doppler imaging are not only helpful in differentiate diagnosis with other placental tumor, but can also predict the perinatal outcome. 利用杜卜勒超音波血流侦测与彩色杜卜勒影像不仅可以帮助胎盘绒毛膜血管瘤与其他胎盘良性肿瘤的鑑别诊断，还可以评估怀孕的周产期预后。
The blood flow velocity of mitral during early diastole（E）and atrial contraction（A）were also measured by pulsed Doppler echocardiography and E/A ration was calculated. 结果正常组舒张早期峰值速度（E）>左房收缩期峰值速度（A），E/A>1;
Now, no theories can explain perfectly the reason of Doppler signal generating in LDV for solid, so developing the LDV for solid is very important and have a big potential market. 因此,研制固体激光多普勒测速仪不仅意义重大,还有很好的市场前景。