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- The cosmological redshift is not a normal Doppler shift. 宇宙学的红移并不是平常的都卜勒偏移。
- 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。
- Pulsar signals should be nearly sinusoidal after the Doppler shifts are taken out, so Fourier transforms pick them up pretty easily. 当多普勒偏移去除后，脉冲星的信号应当近乎是正弦曲线的样子，所以傅里叶变换可以很容易的去除多普勒效应。
- This is found by observing the doppler shift in the frequency of the radio signals broadcast from the satellite. 这是通过观测卫星所发射的无线电信号频率中多普勒偏移来确定的。
- Such wobbling betrays itself as tiny Doppler shifts in the spectral lines present in a star's light. 这样的摇晃现象，会显现在恒星光谱中，使谱线产生微小的都卜勒位移。
- Various noises can shake the periscope, introducing subtle Doppler shifts in the frequency of light passing through it. 各式各样的杂讯会晃动潜望镜，使得光通过之后，其频率会出现些微的都卜勒频移。
- Simulation results show that the new method eliminates the influence of large Doppler shifts effectively, with fast acquisition time. 仿真结果表明,这种方法可以有效地消除大Doppler频移的影响,迅速完成扩频码的捕获。
- Doppler Shift in satellite communication should not be ignored for the satellites with relative motion. 在卫星通信过程中,对具有相对运动的卫星,星间链路的多普勒频移是不能忽视的。
- The analysis and simulation shows that this radar system has higher range resolution and insensitivity to Doppler shift, etc. 分析与仿真结果表明，这种雷达系统具有距离分辨率高、对多普勒频移不敏感等特点。
- For an in-depth search, even a small change in sky location makes the Doppler shift different enough to completely wash out any signal if done wrong. 对于深入的研究，即使是天空中位置的小小变换，相应的多普勒偏移也是不同的，如果处理不对，什么有用的信号都观测不到。
- The low temperature all but eliminates relativistic and Doppler shifts, and it gives a two-meter-tall fountain clock half a second to flip the atoms' spins. 这样的低温几乎消除了相对论及都卜勒效应引起的偏移，使一个两公尺高的喷泉钟有半秒钟的时间来反转原子的自旋。
- Abstract The formula of the second order Doppler shift of simple cubic monatomic nanocrystalline particle is reduced by means of the Green's function. 摘要 应用格林函数理论 ,推导了简立方单原子纳米晶体颗粒的二次多普勒移动公式。
- The system performances of QAM and ARDPM are compared by calculating the error bound of two systems with diverse Doppler shift over fading channel. 在多谱勒频移较小时,ARDPM系统的性能优于QAM,但是随着多谱勒频移的增大,ARDPM系统的性能将迅速恶化,此时QAM系统的性能将优于ARDPM。
- However, in ionogram mode, though Digisonde works with many sounding frequencies, the resolution of Doppler shift is too low to detect ionospheric disturbances precisely. 而在频高图模式下;虽然工作的频点多;能够获得电子浓度的高度剖面的信息;但探测的多普勒频移的分辨率低;无法用来精确检测电离层扰动.
- This paper researches several comb waveforms on their transmitting efficiencies , resolutions in range and reverberation suppression properties based on Doppler shift . 研究了若干种主动声纳梳状谱信号的发射效率、测量精度以及基于多普勒的抗混响性能。
- The data analysis has to compensate for the Doppler shift to make any signal as sinusoidal as possible, which helps pull it out of the noise (with something based on a Fourier transform). 数据分析中比较对多普勒偏移进行补偿以使信号尽可能地接近正弦曲线，以方便从噪音中提取真正的信号（通过傅立叶变换）。
- To make a rotation curve one calculates the rotational velocity of stars along the length of a galaxy by measuring their Doppler shifts, and then plots this quantity versus their respective distance away from the galactic center. 沿着银河的长度通过测量它们的多普勒变换计算星系的旋转速度的旋转曲线,然后绘出它们分别远离银河中心的距离。
- DFT-Code acquisition method can estimate Doppler shifts while searching PN phase.It is necessary to increase the number of DFT points to keep the frequency error in the range of trace loop. DFT伪码捕获算法在进行伪码搜索的同时估计多普勒频偏,为了满足捕获精度要求,需要增加DFT点数,但随着运算点数的增加硬件实现难度成倍增长。
- Authorized Bandwidth The necessary bandwidth required for transmission and reception of intelligence. This definition does not include allowance for transmitter drift or Doppler shift. 授权带宽智能传输和接收所需的带宽。该定义不包括允许发射机漂移或多普勒漂移。
- In Doppler effect,the generation of Doppler shift has smoothing with wave source and relative motive case of the observer. Based on these,we discuss the application of Doppler effect in satellite orientation,medical diagnosis and aerological sounding. 在多普勒效应中有多普勒频移产生;并且与波源和观测者的相对运动情况有关;以此为基础讨论了多普勒效应在卫星定位、医学诊断、气象探测中的应用.
