This paper introduces briefly the frequency response, damage parameter of two-ray multipath model and the relationship between multipath time delay, antenna height and communication distance.
在微波视距通信中通常采用二径模型来描述信道，简要介绍了二径模型的频率响应、损伤参数以及多径时延与天线高度、通信距离的关系。
The statistic model of air-ground radio communication channel is characterized by the multipath fading, Doppler power spectrum and delay power spectrum.
空地通信信道的主要统计特性包括多径衰落特性、多普勒功率谱和时延功率谱。
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