在微波暗室静区反射电平计算时常采用点源发射模型模拟天线的特性,它适用于低频段或方向性差的天线。
In calculation of reflected level of quiet zone in anechoic chamber, a spot emission model is often used to simulate antennas characteristic.
根据表面质点响应中瑞利波和反射体波能量分配分析表观相速度扰动机制,讨论振源、测点、洞穴三者相对位置及频率对表面波表观相速度影响。
Mechanism of disturbance of apparent phase velocity is analyzed from distribution of energies of Rayleigh waves and the reflected body waves in the responses.
在抛物柱面反射器上进行一维菲涅尔区相位修正结构设计 ,可以构成一类新型的点源馈电反射器。
The one dimensional Fresnel zone phase correcting principle can be applied to a cylindrical reflector to construct a new type of point source feeding reflector.
点力源在均匀横向各向同性介质中激发的弹性波可以用透射-反射矩阵法进行求解。
Elastic waves from a point force in transversely isotropic, homogeneous media can be solved through the reflectivity-transmittivity matrix approach.
点力源在均匀横向各向同性介质中激发的弹性波可以用透射-反射矩阵法进行求解。
Elastic waves from a point force in transversely isotropic, homogeneous media can be solved through the reflectivity-transmittivity matrix approach.
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