1) Doppler spectrum signal
多普勒频谱信号
2) Audio Doppler signal
音频多普勒信号
3) Doppler frequency signal
多普勒频率信号
4) pulsed wave Doppler
频谱多普勒
1.
Methods Color Doppler flow image(CDFI) combined with pulsed wave Doppler(PW) was used to define the course of vertebral artery and determine the parameters of blood flow for comparative study between two groups: patient group(30 patients with stenotic vertebral artery's inner diameter <2.
8 mm的狭窄患者30例作为病例组,另选健康自愿者30例作为对照组,分别进行彩色多普勒(CDFI)及频谱多普勒(PW)血流显像检查,观察椎动脉走向,测其内径、峰值流速(Vmax)、阻力指数(RI)。
5) Doppler Spectrum
多普勒频谱
1.
The blood flow of the main renal artery and segmental renal vessels before and after the sclerotherapy were measured by Doppler spectrum, meanwhile, another 20 cases were chosen as c.
结论超声引导下穿刺注射99·9%乙醇治疗肾囊肿是一种安全、微创、高效、经济的治疗方法;多普勒频谱检测肾血流有助于了解肾囊肿对肾脏的影响。
2.
In the algorithm the doppler spectrum of sea clutter is di- vided into the so-called platform motion spectrum and the sea-echo spectrum.
文中提出新的海杂波模拟算法,该算法将海杂波的多普勒频谱分解成平台运动频谱和海面自身运动频谱,通过脱机方式计算这两个频谱分量,从而有效地减少计算量,使模拟能实时完成。
6) Doppler signal
多普勒信号
1.
The model of Doppler signal was constructed at first,then the design of wall filter and AR Models of unneeded filtering clutter were analyzed and various filter that can suppress wall signal were mainly analyzed and their capability were compared simply in this paper.
本文首先给出了多普勒信号的模型,然后简单分析了壁滤波器设计以及无需滤波的AR模型法。
2.
The system is constructed for analyzing Doppler signals from umbilical arteries.
文章在笔记本计算机的硬件基础上建立了脐血流多普勒信号多参数分析的便携式系统。
3.
The applicatin of correlative examining and testing technology to the Doppler signal demodulation of radio fuze is discussed.
探讨了相关检测技术在无线电引信多普勒信号检波的应用,从理论上分析了相关器的去噪特性,设计了相关器的参数并进行了仿真及试验。
补充资料：多普勒频谱分析
多普勒频谱分析
超声波检查技术之一。对运动物体所产生的多普勒信号的频谱分布进行分析的技术。其目的是为了将所含频率内容与运动速度(如血流速度)联系起来。超声医学中常用的频谱分析器有多通道频谱分析器、扫掠滤波器及快速傅立叶分析器。此外，考虑到经济性与简单性，临床中还普遍采用直接从时域信号中提取与速度有关波形的时域分析法。这方面的仪器有过零计数器、峰值频率跟随器、平均速度计算器、速度剖面测量仪等。
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