地面波传播

特别是把短波单边带通信，地面波传播方式和双音报警技术引入天气警报服务系统，开辟了短波单边带气象通应用的新领域。

Specially , short wave single side band ( SW SSB ) and ground wave transmission and technology of double tone giving an alarm are used in weather warning service , as a result a new field of using SW SSB meteorological communication is set up .

最后分析了气锤振动的地面波的传播和衰减。

Finally , the propagation and the attenuation of the ground wave of hammer vibration are discussed .

含水与不含水地层的分层交错对地面运动和波传播的影响

Effect of alternate dry and saturated soil layers on ground motion and wave propagation

运用等效地面代替实际的地面来解决在波传播过程中因大气折射率不均匀造成的传播轨迹弯曲的问题，给出了在等效地面上天线不同架高时的计算电路模型。

The use of equivalent earth surface instead of actual ground resolves the problem , which the direction of wave travel bends in the atmosphere owing to the inhomogeneity of air index , and the circuit model in which equivalent earth surface be taken into account is given .