1) Venous Doppler
静脉多普勒
1.
Significance of Photoplethysmography Combined with Venous Doppler in Postoperative Efficacy Evaluation in Patients with Lower Extremity Venous Varicose;
光电容积描记联合静脉多普勒对下肢静脉曲张术后疗效评价的意义
2) Doppler waveform of the hepatic vein
肝静脉多普勒波形
3) Pulsed Doppler
脉冲多普勒
1.
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
2.
The simulation method of pulsed Doppler signal;
脉冲多普勒信号的模拟方法
3.
In mitral,tricuspid inflow and both ventricular outflow Pulsed Doppler patterns,Time intervals were measured and modified by heart rates,then Tei index was calculated.
5)周],按孕周分为4组,分别取得左、右心房室瓣和大动脉瓣口脉冲多普勒血流频谱,测量相应时间间期和当时心率,用平均心率进行校正,计算左、右心室Tei指数。
4) Pulsed-wave Doppler
脉冲多普勒
1.
Pulsed-wave Doppler Assessment of Left Ventricular Diastolic Function in Hypertension Patients;
脉冲多普勒检测二尖瓣环运动速度评价高血压患者左室舒张功能
2.
Methods DTI examined 57 fetuses with 14-40 weeks gestational age that suffer from arrhythmia, observed and analyzed motion amplitudes and peak distance of the mitral annulus and the tricuspid annulus, and compared the characteristic of Pulsed Doppler tissue imaging(PDTI) and traditional Pulsed-wave Doppler(PW).
方法 对产前检查发现有心律失常的 5 7例胎儿应用DTI的二维和脉冲方式观察四腔心切面的房室瓣环运动 ,分析其图像特征 ,并与传统的脉冲多普勒血流频谱 (PW )进行比较。
5) Pulse Doppler
脉冲多普勒
1.
Investigation on angle error detection algorithm of conical-scanned pulse doppler and stepped frequency composite guiding system;
锥扫脉冲多普勒/频率步进复合制导系统测角方法研究
2.
Development of Blood Flow Measurement System by Pulse Doppler Ultrasound;
脉冲多普勒血流测量系统的研制
3.
On the basis of the analysis of the signal process requirement of pulse doppler fuze and the character of DSP device,the principle of pulse doppler fuze signal process is expatiated and the design of digital signal processor used in pulse doppler fuze is made and the key of the hardware and software design is also introduced in detail in this paper.
在分析脉冲多普勒引信信号处理需求和DSP信号处理器件特性的基础上,阐述了引信信号处理的工作原理,开展了脉冲多普勒引信数字化信号处理系统的设计,并对系统中硬件设计和软件设计中的关键部分进行了详细介绍。
6) pulse-Doppler
脉冲多普勒
1.
Modeling and simulation of a pulse-Doppler radar system based on Simulink;
基于Simulink的脉冲多普勒雷达系统建模与仿真
2.
Comparing with the differential range method that early radar adoptive for measuring velocity, the radar, which based on Pulse-Doppler theory, has the better real time capability and high precision.
与早期雷达采用距离微分方法测速相比，基于脉冲多普勒理论的雷达测速技术具有实时性好、精度高等优点。
3.
In order to improve the anti-LFM(linear frequency modulation) interference performance of pseudo-random code phase-modulation and pulse-doppler combined fuze,adaptive time-variant interference suppressing filter based on FRFT(fractional fourier transform) is used to suppress LFM-interference in the combined fuze.
为提高伪码调相脉冲多普勒引信抗线性调频(LFM)干扰性能,将基于分数阶傅里叶变换(FRFT)的自适应时变干扰抑制滤波器应用到伪码调相脉冲多普勒引信中,用来对LFM干扰进行抑制。
补充资料：彩色多普勒血流成像
彩色多普勒血流成像
超声学检查方法之一。又称“彩色多普勒血流图”。应用脉冲超声多普勒原理，在二维和M型超声心动图基础上，用彩色实时显示血流的方向和相对速度，提供心脏和大血管内血流的时间和空间信息的超声诊断技术，是80年代多普勒超声心动图的重要进展。人体和血流的反射信号经结构分析和血流分析处理后，可在显示屏上显现的黑白实时二维声像图上叠加彩色实时血流影像。还可与M型超声心动图、脉冲波和连续波声谱图显示同时进行。其特点是可同时显示心腔某一断面上全部异常血流束的分布及数目；表现血流途径及方向，辨别层流、湍流和涡流；测量血流束的面积、长度、宽度；显示结构异常与血液动力学异常的关系。临床应用于心脏瓣膜病、先天性心脏病、心肌病及心脏肿瘤等无创性诊断，提高了诊断的敏感度和准确度。此技术方法尚有混叠现象及显示帧数受限的缺点。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条