Doppler

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.

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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.

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Doppler - sonar is a dead - reckoning system.

多普勒 - 声纳是一种推测航位系统.

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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.

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Doppler velocity tracing was of high speed and high hinder.

Doppler流速曲线为高速、高阻型.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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