Doppler

Compression Method of the Echo Data for Coherent Pulsed Doppler Radar

脉冲多普勒雷达回波信号数据压缩处理方法

Detection and analysis of heavy snow echoes with Doppler Weather Radar

一次降雪过程的多普勒雷达探测分析

Those complicated Doppler shifts are where the angular resolution comes from.

有了这些复杂的多普勒偏移,就有了角分辨率的问题.

The pulsation in the original data of Doppler velocity has to be removed before the retrieval.

用VAP方法反演风矢量场前必须首先消除原始Doppler速度资料中的脉动.

The flowing counter pulsating and volume of blood stream were showed clearly in colour doppler.

彩色多普勒(doppler)清楚显示眼上静脉血液逆向流动及搏动频谱.

Conclusion Doppler echocardiogram is important in diagnosing and differentiating pulmonary stenosis.

结论多普勒超声在肺动脉瓣狭窄诊断与鉴别诊断中具有重要的价值.

Doppler Radar Data Analysis of 4.12 Hail Event in Jiangxi Province

江西4·12降雹过程的多普勒雷达资料分析

By analysis of the differences of the four methods on estimating rain intensity at S band of dual linear polarization Doppler radar, the influence of K_ DP numerical method on the estimating rainfall is also studied here.

分析了S波段双线偏振多普勒雷达几种估测降水强度方法的差异，并与地面雨量站资料进行对比，研究了KDP计算方法本身对降水估测的影响。

By using the Doppler radar echo about Base Reflectivity ( R), Storm Relative Vel Map ( SRM), Vert Integrated Liquid ( VIL) etc, a severe hail and wind weather process which occured in the south of North China on June 20,2004 is analyzed.

运用多普勒雷达的基本反射率（R）、风暴相对径向速度（SRM）、垂直积分液态含水量（VIL）等产品，分析了2004年6月20日华北南部罕见的冰雹大风天气过程。

Doppler-sonar is a dead-reckoning system.

多普勒 - 声纳是一种推测航位系统.

Objective : To analyse the applied value of Color Doppler ultrasound on cryptorchidism.

目的分析彩色多普勒超声在诊断隐睾症中的应用价值.

The Doppler frequency can be obtained as a heterodyne or beat effect.

由于外差或频差效应,能够得到多普勒频率.

Doppler velocity tracing was of high speed and high hinder.

Doppler流速曲线为高速、高阻型.

Objective To simulate the ultrasound Doppler flow imaging of mitral regurgitation.

目的模拟二尖瓣反流的超声doppler成像.

Using Doppler radar data, an algorithm for precipitation nowcast is set up by applying an improved cross-correlation extrapolation method ( COTREC).

利用多普勒雷达资料，采用一种改进后的交叉相关法（COTREC）建立了一种降水临近预报方法。

The radar altimeter mounted on high speed vehicle demonstrateswideband doppler modulation characteristic.

安装在高速运动载体上的雷达高度表,其地面回波被一宽带多普勒信号所调制.

The Simulation of Doppler Velocity Log System of Underwater Vehicle.

水下机器人多普勒测速声纳系统仿真.

Initial Analysis of Doppler Radar Echo Characteristics of Heavy Precipitation in Summer

盛夏强降水的多普勒雷达回波特征的初步分析

The asymmetric wind structure of typhoon AERE detected by Doppler radar

多普勒雷达探测艾利台风风场不对称结构

Analysis of Doppler Radar Detection Feature of A Southwest-vortex Heavy Rainfall

一次西南涡暴雨的多普勒雷达探测特征分析

The Method for Improving the Detection Characteristics of Pulse Doppler Radar

改善脉冲多普勒雷达检测性能的方法

Research on Rotating Speed of Cannonball by Using CW Doppler Radar

连续波多普勒雷达测量炮弹旋转速度的研究

This paper studies and simulates the CFAR detection in pulse Doppler radar processor.

本文对脉冲多普勒雷达信号处理机中的CFAR检测器进行了仿真研究。

Doppler frequency drift and timing error were considered in state transform equations.

状态方程综合考虑了多普勒频移、定时误差.

Experiment of Doppler Radar Data Assimilation for Convection in Cold Vortex

多普勒雷达资料在冷涡强对流天气中的同化应用试验

This thesis mainly discussed the realization of Pulse-Doppler radar signal processing system. The signal processing system of this thesis is mainly composed of Pulse Compressing ( PC) and Moving Target Detection ( MTD) and Automatic Angle Detecting and Constant False-Alarm Rate ( CFAR).

本文研究的主要目的是实现某脉冲多普勒雷达信号处理机，该信号处理机主要由脉冲压缩（PC），动目标检测（MTD），自动测角，恒虚警处理（CFAR）四个模块组成；

Fifthly, we explore the use of an ensemble Kalman filter ( EnKF) to assimilate simulated Doppler radar data in a cloud model.

采用EnKF技术，在云模式中同化模拟多普勒雷达资料。

The doppler frequency is a function of the two scattering directions.

多普勒频率是两个散射方向的函数.

A Doppler rate estimation method based on sub-space projection technique was proposed.

提出了一种基于子空间投影技术的多普勒调频率估计方法.

These aneurysms are often identified on colour Doppler US.

彩色多普勒超声检查通常可以用来诊断门静脉瘤.