transpolar

The two transpolar shortwave time signal circuits,Moscow and Irkutsk to the Great Wall Station in Antarctica, are used to study the fading characters for shortwave long circuit.

为了研究过区短波长电路衰落特性，在南长城站收测莫斯科、依尔库茨克短波授时台信号，并给出各频率对应衰落深度、衰落率、衰落平均持续时间等参计特征和衰落幅度分布曲线。