查询词典 Doppler range

This paper introduces the application background for developing an laser Doppler vibrometer for underwater acoustic communication and expounds the principle of laser Doppler vibrometer and two coherent detection methods.

介绍了激光多普勒振动计用于水下声光通信的应用背景，阐述了激光多普勒振动计的工作原理和两种相干检测方式。

So the two methods have been chosen to detect and estimate the center of a tropical cyclone over China offshore.They are the Geometric Axisymmetric Center Positioning Method and the Velocity Distance Azimuth Display Positioning Method,respectively.The former decides the position of a tropical cyclone center using directly the Doppler radar radial velocity field,the latter does the position using the productV_(r×D of the Doppler radar radial velocity valueV_(r and the distance from observation site to radar center.

两种客观方法分别为几何轴对称中心定位法和速度距离方位显示中心定位法，前者直接应用多普勒径向速度场进行定位估计，后者则应用观测的多普勒径向速度场与观测点至雷达中心距离的乘积来估计台风中心位置。

This approach followed a novel idea: the main-lobe clutter spectrum is regular for the deviation azimuth of clutter is corresponding to its Doppler frequency, while the returns of moving targets violate this regularity, so it\'s reasonable to use the azimuth error in each Doppler channel as a detector of ground moving target.

该方法以一种新的思路，利用单脉冲雷达和波束主杂波谱区固定回波的偏角与多普勒频率相对应的规律性，将动目标回波视为对这种规律性的干扰，从而利用单脉冲测角误差在主杂波谱区进行地面极低速动目标检测。

Basing on the Doppler reflectivity map, the entire precipitation rain bands were apparent westward rotation process. And basing on Doppler radial velocity map, the configuration of low-level convergence with high-level divergence is conducive to the precipitation occurrence and development. The rainstorm resulted from the cloud band maintaining over the rainfall zone.

从多普勒反射率因子图上，整个降水雨带为明显的旋转西进过程；多普勒径向速度图上，低层辐合高层辐散的配置有利于降水的发生发展，暴雨是长时间维持在其上空的强降雨云带造成的。

Advanced medical equipment: four-slice spiral CT, 800MA digital X-ray imaging machine and 500MA special X-ray film, X-ray mammography machines, new high-end color Doppler ultrasound diagnostic apparatus, the 12-lead Holter and the dynamic analyzer Blood analyzer, color transcranial Doppler, EEG machine, electronic endoscopy, colonoscopy, laparoscopy, nasopharyngeal mirror, electric audiometry, Refractometer computer, automatic biochemical analyzer, multi-function Anesthesia machines, high-pressure oxygen storage, in order to meet the medical needs of patients.

医疗设备先进：四排螺旋CT、800MA数字化X线造影机及500MA专用X线拍片机、钼靶X线机、新型高档彩色多普勒超声诊断仪、12导动态心电分析仪及动态血压分析仪、彩色经颅多普勒血流仪、脑电图机、电子胃镜、肠镜、腹腔镜、鼻咽纤维镜、电测听、电脑验光仪、全自动生化仪、多功能麻醉机、高压氧仓等，以满足广大患者的诊疗需要。

Pregnancy I am 25 +5 W have been in the hospital according to four-dimensional color Doppler ultrasound, color Doppler ultrasound examination at the time the doctor said that a site can not see, but the results came out, apart from the umbilical cord around the neck two weeks, other are also normal, single-color review of the proposed 32 weeks, but look at the results of color after the doctor said not to review, so I do not know whether it is necessary to review in the end?

我怀孕25+5W时在医院照过四维彩超，当时彩超检查的医生说某个部位看不到，不过结果基本出来了，除了脐带绕颈2周，其他都还正常，彩超单上建议32周复查，但看结果的医生看彩超单后未说复查，所以我不清楚到底是否需复查？

For the novel passive detecting radar system,an algorithm based on the existing algorithm of Doppler changing rate is presented to improve the locating accuracy and convergence rate.The Doppler frequency is adopted as the observed quantity,at the same time the EKF algorithm is introduced to process the initial locating results.

针对新型无源探测系统的要求，在原有多普勒频率变化率无源定位算法的基础上，为提高定位精度和收敛速度，提出了增加多普勒频率作为观测量，同时引入EKF算法对原始定位结果进行了处理。

Based on the estimation of the directions of arrival and the Doppler frequencies of the sources, a quaternion model was proposed, which made the estimation of the DOA and the Doppler frequencies similar to that of one-dimensional azimuths so as to avoid direct and indirect pairing with the complex model.

针对阵列信号处理中方向角、多普勒频率的同时估计问题，提出了方向角、多普勒频率的四元数模型，使估计方向角、多普勒频率二维问题与估计一维问题相类似，从而避免了在经典的二维复数模型估计中直接或间接的配对。

Using 2MHz pulseultrasonic Doppler probe, the index of hemodynamics such as blood flow rate、audio frequency、vascular pulsation of bilateral vertebral and basilar arteries were detected in order to analyze the diagnosis of cervical spondylosis involoving vertebral artery by Transcranial Color Doppler through the occipital foramen. Results: of all 108 carses, 80 cases were positive(positive rate 74.7%). In CSA group,cases of low flow rate were 45.6%,cases of high flow rate were 28.7%,and cases of no...

为分析经颅多普勒检测椎动脉型颈椎病的诊断价值，采用配对研究方法，用 2MHz脉冲多普勒探头经枕骨大孔窗口，检测左、右椎动脉及基底动脉的血流速度、流向、音频、血管博动指数等血流动力学指标，结果显示 10 8例患者有 80例异常，异常率 74 7%，并发现CSA组低流速者占 45 4 %，高流速者占 2 8 7%，正常流速者占 2 5 9%，与正常对照组间有显著差异(P 0 1)，总体而言，低流速型是CSA的主要特征之一。

Now we are domestic so-called four-dimensional color Doppler ultrasound is not actually a real four-dimensional color Doppler ultrasound.

现在我们国内所谓的四维彩超实际上都不是真正的四维彩超。

Vishnu entered a dark fourth dimensional dream that did not support his field or continued life.

毗瑟挐进入了一个第四密度的黑暗梦想，那里并不支持他的能量场或继续生命。

Leaders and decision-making persons use it to collect the data, including the information of unit work, handing in fee, oweing fee, prepaying fee,changing and afterpaying and account transfering of joining-insurance employee, and account paying of all kinds of insurances from hospitalization insurance institutions.The collected data is picked up, organized, switched and showed to user.

该子系统主要面向各级领导、决策分析人员；从各个医疗保险经办机构和定点医疗机构采集数据，包括在各个医疗保险经办机构处理的单位办公信息，单位缴费、欠费、预缴费信息，参保职工变更信息，参保职工增减变动信息，参保职工补缴信息，参保职工帐户划拨信息：包括各定点医疗机构处理的各险种帐户支出信息，各险种的统筹金支付信息等；将采集的数据提取，组织和转换，然后展示给用户。