• 电泳确定多普勒使用侵入性快速技术称为电泳光散射

    Electrophoretic mobility is determined from Doppler shift by using a non-invasive and quick technique called Electrophoretic Light Scattering.

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  • 利用智利天文望远镜天文学家测量星云气体多普勒速度

    By using telescopes in Chile, the astronomers measured Doppler shifts and thus velocities of gas in the Trifid.

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  • 假设现在可以,对双星进行测量

    Imagine now you can make the Doppler shift measurements of both stars.

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  • 你们可以得到所有天文学中的有用信息,只要对双星系统进行多普勒

    And so you get all this useful information in astronomy by making the Doppler shift measurements of binary systems.

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  • 存在一个双星系统恒星看不见能得到双星光谱然后在光谱看到双星多普勒

    If you have a binary system whereby both stars are visible so you get the spectrum of both stars, then you see the Doppler shift of both stars in the spectrum.

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  • 正如早先形容过我们知道二者多普勒记住你们知道,物质质量得到供体星

    So now we have a situation that I just described earlier that you have the Doppler shift of both objects, and remember, I told you that you also get the masses.

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  • 现在可以测量双星时间多普勒

    And now you measure the Doppler shift of star two as a function of time.

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  • 可以运用,中子星,多普勒意味着可以得到

    So by timing the pulses of the x-rays, you can get a handle on the Doppler shift of the neutron star.

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  • 相对一般通信系统而言,低轨卫星通信系统具有信号动态范围多普勒大且变化速度快信道起伏剧烈等特点

    LEO satellite communication system has the properties of larger power dynamic range, larger and faster changed doppler frequency shift and rapid fluctuation compared to ordinary communication system.

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  • 讨论了利用GPS多普勒观测确定运动载体速度基本原理,估计出采用方法可以达到精度

    The basic principle for determining the speed of moving vehicles with GPS Doppler observed values is discussed, and the available accuracy with this method is presented.

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  • 本文详细论述依据正交相位检测法提取多普勒信号方法部分实现电路作一简要介绍

    This paper has discussed the way of probing Doppler shift signal based on crossed phase detecting method in detail and introduced each function circuits briefly.

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  • 是一种类似的多普勒效应就像救护车面前驶过时,会促使逐渐靠近警报器明显地改变其音调那样。

    A similar effect, called the Doppler shift, causes the siren of an approaching ambulance to apparently change pitch as it passes you.

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  • 信号任何多普勒无论如何都不会这个频带而且也肯定会是整个信号一个组成部分

    Any Doppler drift in the signal would fall within this wide band anyway and will form part of the total signal.

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  • 雷达回波信号幅度相位多普勒外,还存在第四特征——极化信息

    Besides amplitude, phase and Doppler frequency, polarimetric information is the fourth characteristic in the radar echo.

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  • 超声血流实现其测量血流速度关键多普信号提取多普勒信号是血流速度的真实反映

    As Doppler shift signal can significantly reflect the speed of flow, the abstracting of Doppler shift signal is the key of blood flow speed testing in a ultrasonic blood flow detector.

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  • 两者载波频率敏感,且在AWGN多普勒环境表现相当。

    But both of them are sensitive to carrier frequency shift, further, they have comparative BER under AWGN and Doppler shift environment.

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  • 动态环境存在较大的多普勒,这使得GPS接收机在没有导辅助的情况很难可靠工作

    There is great Doppler frequency shift under high dynamic circumstances, thus the common GPS receiver cannot work reliably without the help of inertial navigation devices.

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  • 电离层高频反射回波多普勒观测研究电离层扰动一个重要方法

    Doppler frequency shift observation of ionospheric high frequency echo is an important method for studying ionospheric disturbances.

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  • 针对衰落信道广泛存在多普勒现象,本文提出了一种MPSK信号数字化识别解调方法

    A new method for digital identification and demodulation of MPSK signals is presented under the condition of the Doppler frequency shift of channel attenuation.

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  • 本文分析电离层变化运动引起多普勒的物理机制假定一个包含因素电离层模型

    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.

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  • 复合系统通信中,飞行器动态使扩频信号存在多普勒

    In the communication of multiplex system, the DS signal exists Doppler frequency shift for the high dynamic situation of aerocraft.

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  • 轨道方程出发,对影响卫星链路接收机带宽主要因素———多普勒进行了研究。

    The Doppler frequency shift, the main factor restricting the bandwidth of receiver in inter satellite laser link, with orbit equations is calculated.

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  • 利用洛伦兹变换导出了相对论多普勒公式并且讨论了波源超音速运动情况。

    A general formula of relativistic Doppler shift is obtained from Lorentz transformation, and the supersonic motion is discussed as well.

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  • 状态方程综合考虑多普勒定时误差

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

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  • 进一步分析显示多普勒不能解释长波方向扫描的波长自扫描现象。

    Furtheremore, the analysis indicates that the Doppler frequency shift cannot be Used to explain the wavelength self-scanning initially towards the longer wavelength.

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  • 低轨卫星信道地面无线信道具有不同特点信噪比低轨卫星信道的两个显著特征。

    The channel of LEO satellite is different from wireless channels on the ground. Low SNR and large Doppler shift are the two characteristic of LEO satellite channel.

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  • OFDM系统中,影响性能一个重要参数就是多普

    The maximum Doppler frequency shift is an important parameter which affects the performance of the OFDM system.

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  • 此外应用方法可以发现恒星质量

    Furthermore, applying the Doppler shift method, one can find the mass of a star.

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  • 此外应用方法可以发现恒星质量

    Furthermore, applying the Doppler shift method, one can find the mass of a star.

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