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.

为了极区短波路衰落特性，在南极城站收测莫斯科、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数统计特征和衰落幅度分布曲线。