这时需要分距离单元进行时频分析，得到距离-瞬时多普勒图像。
In this case, time frequency analysis must be performed for every range cell to obtain range instantaneous Doppler (RID) image.
采用了短时傅里叶变换方法对仿真信号进行了时频分析，得到了能够较好地反映目标特征的微多普勒图像。
Short time Fourier transform was used to analyze the simulated signal in the time-frequency domain, a micro-Doppler image that can demonstrate the target characteristics was generated.
方法：利用超声多普勒原理，采用彩色多普勒监测肾囊肿穿刺抽液，注液时所产生的彩色多普勒图像，从而确定穿刺针最佳位置。
Methods:Using the color Doppler ultrasound to monitor the centesis of kidney cysts and to orientate the best position in the process of centesis.
依据合成孔径雷达(SAR)距离方程和多普勒方程，用SAR成像参数可实现SAR图像的几何校正。
According to the Range Doppler equations, the geometric calibration of SAR image can be realized using SAR imaging parameters.
倍频影像编码采用通用电气公司的图像质量提升到更高层次，增强你的形象多普勒成像和彩色流。
Coded Octave imaging takes ge's image quality to the next level, enhancing your images for color flow and Doppler imaging.
结果病变血管在二维超声图像，彩色多普勒血流显像以及频谱多普勒方面差异均有显著性。
Results the differences of various diseased blood vessels are remarkable among the two-dimensional ultrasonic images, the color doppler? Ow images and frequency spectrum doppler.
目的认识心内平滑肌瘤病（ICL）的彩色多普勒血流成像（CDFI）图像特点，探讨CDFI诊断ICL的临床应用价值。
Objective To recognize the ultrasound characterizations of intracardiac leiomyomatosis (ICL), and discuss the value of color Doppler flow imaging (CDFI) in diagnosing ICL.
这样，利用多普勒频移现象“合成”一个更大的孔径，达到“增加天线长度”的效果，提高雷达图像的方位向分辨率。
So, a larger aperture can be composed, and we obtain a good purpose of increasing the length of the antenna, and we obtain a better Radar image on the orientation.
目的将超声医学图像三维重建技术与多普勒血流成像技术结合起来，实现超声血流图的动态三维重建。
Objective To implement dynamic 3d reconstruction of ultrasonic flow images by the technique of 3d reconstruction of ultrasonic medical images combined with Doppler flow imaging method.
在多普勒调频斜率估计中，时频分析法比较直观，估计精度也不错，脱机处理中获得了广泛的应用，图像偏移法估计速度快，在运动补偿中得到了应用。
Image offset method that is also fast can be applied to motion compensation, time-frequency method is intuitionistic and have a better accurate, which is applied extensively on offline.
机载脉冲多普勒气象雷达则能够用清晰的图像实时显示出飞机前方的气象状况，并及时将极端天气的报警信息提供给飞行员，以提前躲避危险。
Airborne pulse doppler weather radar could display clear colorized weather image dynamically on its screen and give pilots alarm about the extreme weather area to avoid risk betimes.
方法回顾性分析5例胎儿三尖瓣下移畸形（经胎儿心脏超声检查诊断）的超声图像与随访结果，分析各切面的二维声像和彩色多普勒血流特点。
Methods Retrospective analyses of 2D-heart views and CDFI(color Doppler flow image) as well as the follow-up findings were made in 5 cases with fetal Ebstein anomaly.
不准确的多普勒中心估计会显著降低合成孔径声纳图像质量。
The inaccurate Doppler centroid estimation can evidently degrade the quality of SAS image.
目的探讨乳腺癌的高频超声图像特征及彩色多普勒血流表现。
Objective To evaluate the role of high frequency ultrasonography (HFU) and color Doppler flow imaging (CDFI) features in the diagnosis of breast cancer.
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。
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.
采用心内超声组织多普勒显像技术获取窦性心律上述各点的二维、M型心肌速度和加速度图像；
M mode and 2D TDI were obtained to map myocardial velocity and acceleration with normal sinus rhyme at different sites of cardiac conductive system described above.
采用心内超声组织多普勒显像技术获取窦性心律上述各点的二维、M型心肌速度和加速度图像；
M mode and 2D TDI were obtained to map myocardial velocity and acceleration with normal sinus rhyme at different sites of cardiac conductive system described above.
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