Abstract : When using the Range-Doppler model for SAR image geometric correction, the error of satellite orbit, imaging parameter and DEM elevation will affect the geometric correction accuracy.
摘要 ：使用距离多普勒模型进行SAR影象几何校正时，卫星轨道误差、系统成像参数误差和DEM高程的误差会影响几何校正精度。
Next year’s model will have a Doppler sonar to help it avoid high-speed collisions with unsuspecting swimmers.
明年的型号将配备多普勒声纳，以帮助避免与未察觉该设备的游泳者发生高速碰撞。
First, the echo signal model of Bistatic SAR is given and then the analysis of the signal in Doppler domain is performed.
首先给出了双站SAR的回波信号模型，接着分析了方位多普勒信息。
In this paper, the first order approximate model of Doppler frequency is assumed, and an algorithm based on the extended RELAX method is proposed to estimate the parameters of chirp signals.
该文采用上述情形的多普勒频率的分段一阶近似模型，在此基础上，提出一种基于推广RELAX算法的线性调频信号参量估计方法。
After comparison of several location methods of remote sensing image, Range-Doppler (R-D) theory is proved to have advantages as the footstone of pixel location model of SAR image.
本论文分析和比较了多种遥感图像的定位方法后，指出了距离—多普勒(R - D)定位原理作为SAR图像象素绝对定位模型的优势。
This paper does the experiments of Doppler radar's Four-dimensional Variational Assimilation in MM5 model.
本文的工作就是多普勒雷达资料在MM 5模式中的四维变分同化试验。
The mechanism of Doppler frequency shifts resulted from variations and movement of ionosphere is analysed, and a general model for the ionosphere involving several factors is assumed.
本文分析了电离层的变化和运动引起多普勒频移的物理机制，假定了一个包含多种因素的电离层模型。
A biological recognition method by feature detection of human body on the move was presented, and the mathematical model of Doppler shift was established.
根据生物的生命体行为特征，提出一种新的生物识别方法，并建立了多普勒频移数学模型。
Objective: To evaluate the de-endothelialization model in rat carotid artery with Doppler ultrasound and pathologic analysis.
目的：用超声指标和病理指标评价大鼠颈总动脉机械损伤模型。
The light scattering characteristics of particles in phase Doppler sizing anemometry is calculated with a theoretical model based on geometrical optics approach.
应用几何光学近似理论模型计算了激光相位多普勒系统中微粒的光散射特性。
Methods The laser Doppler flowmetry (LDF) was used to monitor the hemodynamic alterations of cerebral microcirculation in various experimental conditions in the cerebral steal model of rats.
方法应用L D F监测不同实验条件下大鼠脑盗血模型脑微循环血流动力学变化。
The model gives Doppler spectra at different combinations of linear polarization of transmitting and receiving waves.
模型给出多普勒谱，在不同的发送和接收波的线性偏振的组合。
In this paper, the influence of doppler effect on GPS pseudo range measurement is described and the model of doppler correction for GPS pseudo range measurement is established.
论述了多普勒效应对GPS伪距测量的影响，建立了GPS伪距测量多普勒改正的模型。
Objective To explore a better arithmetic of Doppler signal by discussing lag correlation method, ar model method.
目的本文通过讨论处理多普勒信号的常用算法：自相关法，AR模型法，希望找到一种性能较好的算法。
Objective: To establish porcine chronic ischemic myocardium model and to evaluate ultrasonic integrated backscatter(IBS) and Doppler tissue imaging(DTI) in detecting this model.
目的：建立心肌慢性缺血动物模型，探讨超声背向散射积分（IBS）和多普勒组织成像（DTI）技术检测慢性心肌缺血的价值。
A theoretical model of laser phase - doppler sizing anemometer based on the geometrical optics approximation of light scattering is studied.
研究和建立了以几何光学近似光散射理论为基础的激光相位多普勒空间干涉条纹模型。
Signal processing model is established, which is based on single pulse angle tracking system, mainly including AGC, Doppler signal detecting and angle tracking.
信号处理模型则根据单脉冲体制角度跟踪系统的处理模式建立，包括自动增益控制、多普勒 信号检测和角跟踪处理等；
The characteristic, transmission model of 3d Virtual Sound is introduced. The Doppler effect is discussed.
介绍了三维虚拟声音的特性、传播模型，分析了多普勒频移的原理和效应模型。
Objective:To conduct such a study on TSS downstream of mitral stenosis using a finite element model of two dimensions combined with Doppler echocardiography in human beings.
目的探讨一种与多普勒超声相结合的人体二尖瓣狭窄下游湍流剪应力二维有限元分析方法。
The statistic model of air-ground radio communication channel is characterized by the multipath fading, Doppler power spectrum and delay power spectrum.
空地通信信道的主要统计特性包括多径衰落特性、多普勒功率谱和时延功率谱。
Aim: Model of saccular aneurysm was established in rabbit and hemodynamics was studied with color Doppler flow imaging.
目的：仿造浆果样动脉瘤形态建立兔侧方动脉瘤模型，并行彩色多普勒超声检测评估。
Objective To investigate the influence of simulated heart motion on the Doppler spectrum velocity - time integral (VTI) of simulated blood flow measurements through an in vitro model.
目的探讨体外模拟心脏运动对多普勒血流流速曲线速度时间积分(VTI)测定的影响。
Method 2-de M-mode and pulsed Doppler were used to measure left ventricular geometric model mitral valve and pulmonary venous flow index.
方法：采用M -型和二维超声技术测量高血压患者左室几何构型，测量各组二尖瓣、肺静脉血流频谱。
Next year's model will have a Doppler sonar to help it avoid high-speed collisions with unsuspecting swimmers.
明天他们将会为它安装多普勒声呐以避免与落水者的高速相撞。
Next year's model will have a Doppler sonar to help it avoid high-speed collisions with unsuspecting swimmers.
明天他们将会为它安装多普勒声呐以避免与落水者的高速相撞。
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