When a radio wave propagating in one medium impinges upon another medium having different electrical properties, the wave is partially reflected and partially transmitted.
电波在不同性质的介质交界处，会有一部分发生反射，一部分通过。
The radio wave propagation velocity is slowed and the ray producing bend but to the asymmetry of the atmospheric medium, the refraction error is produced.
由于空中大气介质的不均匀性使得电波传播速度减慢射线产生弯曲，从而产生折射误差。
This paper gives out a principle of medium-short wave receiver according to software radio technology. It can realize all function of medium-short wave receiver NBDP device, DSC device.
此文提出利用软件无线电技术实现海上中短波接收机的原理，该原理的研究能够实现现有海上中短波接收机、NBDP、DSC的功能。
This paper gives out a principle of medium-short wave receiver according to software radio technology. It can realize all function of medium-short wave receiver NBDP device, DSC device.
此文提出利用软件无线电技术实现海上中短波接收机的原理，该原理的研究能够实现现有海上中短波接收机、NBDP、DSC的功能。
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