Objective To assess the intracranial collateral circulation with cervical continuous-wave Doppler.
目的探讨颈动脉连续波多普勒超声评估颅内侧支循环。
The baseline flow was estimated with continuous-wave Doppler by recording the time-velocity at mid-vessel.
用彩色多普勒超声血流仪检测血管中央的时间-流速,以评估血流量的基线。
The influence of mode mismatch on measurement in continuous-wave cavity ring-down technology was theoretically analyzed and experimentally studied.
对连续波腔衰荡技术中的模式失配对测量结果的影响进行了理论分析和实验研究。
Describing the three methods of the pulse generator signal transmission, the paper focuses on the basic principles and application status of the continuous-wave pulse generator.
介绍了脉冲发生器脉冲信号传输的三种工作方式,重点介绍了连续波脉冲发生器的基本原理及应用情况。
The first is that Shanghai has seen a continuous wave of immigrants who have brought their own dishes with them which have subsequently been subsumed as our own.
首先,源源不断的移民来到这里,他们带来了自己的菜肴,这些菜肴随后被吸收了进来,就像我们自己的上海菜一样。
In addition, high temperature, continuous wave operation of the laser has also been achieved.
此外,高温,连续波运行的设计目标也已达到。
Thee first is that Shanghai has seen a continuous wave of immigrants who have brought their own dishes with them which have subsequently been subsumed asour own.
首先,源源不断的移民来到这里,他们带来了自己的菜肴,这些菜肴随后被吸收了进来,就像我们自己的上海菜一样。 。
The importance of analyzing and processing continuous wave (CW) signals is described. The method of determining the performance of the CW signals frequency is introduced.
叙述分析处理连续波(CW)信号的重要性,并介绍测定CW信号频率特征的方法。
Differences of echo characteristic between impulse radar and continuous wave radar are analyzed, and the potential of UWB impulse for Super-Low-Altitude target-detection is remarked.
分析了超宽带冲激脉冲雷达与连续波雷达的不同的回波特性,指出冲激脉冲雷达对超低空目标探测的潜在优势。
LFMCW (Linear frequency Modulation continuous wave) radar is a radar system which can get the information of range and velocity through modulating the frequency of continuous wave.
线性调频连续波雷达是一种通过对连续波进行频率调制来获得距离与速度信息的雷达体制。
Based on linear frequency modulation continuous wave (FMCW) technique, we have developed a distance measurement method for non contact and non integrating error measurement.
给出一种以频率调制连续波(FMCW)技术为基础的进行无接触、无累加误差和较大动态范围距离测量方法。
The Linear Frequency Modulated Continuous Wave (LFMCW) Radar has high theoretical range precision and can be used for range tracking.
线性调频连续波(LFMCW)雷达在理论上有很高的测距精度,可用于对目标的距离跟踪。
A way to measuring the miss distance using echo signal from multifrequency continuous wave measuring radar is described.
描述了一种利用多频连续波测量雷达回波信号进行事后脱靶量测量的方法。
To confirm the utility of continuous wave Doppler echocardiography in assessing pulmonary artery wedge pressure in patients with mitral regurgitation.
目的探讨连续波多普勒超声在评估二尖瓣返流患者的肺动脉楔压中的作用。
An X band low cost, simple and compact continuous wave Doppler radar is presented. The whole front end is designed using hybrid microwave integrated circuits (mic).
本文介绍了一种X波段低成本、结构简单、小型化的连续波多普勒雷达,雷达前端采用微波混合集成电路(mic)。
The applications of the Kalman filtering algorithm in data processing (range and speed) of quasi continuous wave radar are studied. A new adaptive Kalman algorithm is realized.
主要完成卡尔曼滤波在准连续波雷达数据处理(距离和速度)中算法应用研究,实现一种新型自适应卡尔曼滤波算法。
The paper presents a new radar system based on frequency Modulated Interrupting Continuous Wave (FMICW) by exploiting the hopping frequency technique to improve the capability of HFGWR.
为提高高频地波雷达的抗干扰能力,提出了一种在线性调频中断连续波的基础上基于跳频技术的新高频地波雷达体制。
The first part is the analysis of why the low altitude is limited in frequency modification continuous wave Doppler navigation radar.
第一部分分析了调频连续波多普勒导航雷达存在低高度限制的原因。
LFMCW(Iinear Frequecy Modulated Continuous Wave) radar life detection technique is an organic combination of the vital signs monitoring techniques and the LFMCW radar techniques.
线性调频连续波(LFMCW)雷达生命探测技术是生命探测技术与线性调频连续波雷达技术的有机结合。
A continuous wave titanium-doped sapphire laser pumped by argon laser is: 'reported.
本文报导一种连续波氩离子激光泵浦的掺钛蓝宝石激光器。
This paper describes the principle and realizing technique of measuring distance, for measuring distance fuze with the system of frequency modulation continuous wave (FMCW).
论述了在主动调频连续波(FMCW)体制测距引信中实现精确测距的原理及其实现技术。
This thesis introduces a series of low cost high precision Linear Frequency Modulation Continuous Wave (LFMCW) ranging radar.
本文介绍一种低成本、高精度线性调频连续波(LFMCW)测距雷达。
Frequency modulated interrupted continuous wave (FMICW) is chosen as the emphasis of this paper.
本文选择调频中断连续波(FMICW)作为研究重点。
The differences between the ambiguity function of STMFCW signal and single slope linear frequency modulation continuous wave signal and pulse LFM signal are also discussed.
阐明了它与单斜率线性调频连续波信号和脉冲LFM信号模糊函数的区别;
Methods Using color Doppler flow imaging to detect the pulmonary blood color and continuous wave Doppler echocardiogram to measure the pulmonary flow velocity.
方法用彩色多普勒超声观察心腔和肺动脉内的血流颜色变化,并用连续多普勒超声测量肺动脉内血流速度。
As a new kind of radar system, its inherent superiority of quasi-continuous wave system attracts extensive attention of the radar community.
准连续波体制作为一种新型雷达体制以其固有的优越性引起雷达界广泛的关注。
For a Doppler radar homing seeker with high pulse repetition frequency, the continuous wave approximation is not only simple, but also has a high calculation accuracy.
对于使用高脉冲重复频率的主动多普勒雷达导引头,连续波近似法不仅计算相对简单,而且可以给出较高的计算精度。
Finally, simulation models of FH transmitter, receiver and jammer are presented. The influence of frequency excursion on performance of multi-tone continuous wave jamming is analyzed.
最后给出了跳频通信发信机、接收机以及干扰机成员的仿真模型,分析了频率偏移对多频连续波干扰性能的影响。
The continuous wave radar is the main tracking equipment for trajectory observing at present. Estimation and calibration of system errors have important significance.
连续波雷达是目前外火箭轨道测量的主要高精度设备,用数学方法估计和修正其系统误差有特别重要的意义。
In linear frequency modulated continuous wave (LFM-CW) radar the range resolution is determined by signal bandwidth and linearity.
在线性调频连续波雷达中,距离分辨力由线性调频信号的带宽和线性度等决定。
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