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- 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。
- second order doppler shift 二阶多普勒频移
- One of the second order of angels. 二级天使天使中的第二级
- 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。
- And the second order effects should also be mild. 第二波的影响亦应该比较温和。
- 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。
- Numerical solution of second order differential equations. 二阶微分方程的数值解。
- Kim B. Bruce gave a system of axioms lor second order logic L(Q). Bruce于1978年提出二阶逻辑L(Q)的概念和公理系统。
- 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。
- Kim B.Bruce gave a system of axioms for second order logic L(Q). Kim B.;Bruce于1978年提出了三价逻辑L(Q)的逻辑公理系统。
- The general solution of a kind second order equation is given. 摘要给出一类二阶变系数线性微分方程的通解。
- 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 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。
- It is: (1)designed according to attenuate vib-ration system of second order. 其特点是按具有衰减振荡的二阶系统进行设计;
- 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.
- It is concluded that as second order dispersion compensation can avoid pulse broadening, third order dispersion compensation not only can avoid pulse broadening, but also eliminate pulse edge's oscillating and temporal shift of pulse peak. 结果表明 ,与二阶色散补偿能消除脉冲展宽一样 ,三阶色散补偿不仅能防止脉冲展宽 ,而且也能有效地消除脉冲边沿部的振荡结构和脉冲峰的时移。
- 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。
- By combining these pictographs, a second order of ideas is expressed. 把这些象形字缀合在一起表示了另一层次的观念。
- Existence of positive solutions of BVP for second order IDE with fixed moments. 二阶脉冲微分方程边值问题。
