Time transfer by laser pulses is based on the propagation of light pulses between satellite and ground clocks or between remote clocks on THC Earth.
激光时间传递是通过激光脉冲在空间的传播来实现地面与卫星时钟或地球上远距离两地时钟的同步。
2
In this paper, the sound signal characteristic of moving wheel vehicle, track vehicle and mankind is obtained by analysing the propagation characteristics of the ground.
本文通过对大地传输特性的分析，得出了轮式车辆、履带式车辆和人运动时地声信号的特征。
3
In this paper, the ground wave scattering from a complex target is investigated by combining the FDTD technique of solving the semi-space scattering problem with the theory of ground wave propagation.