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本文简要介绍用于高频通信的几种高频传播长期预测法,对高频天波场强月中值的长期预测值与实测值进行了比较;重点介绍了“亚大地区F_2层电离层预测”方法。针对该地区的96条电路,将用该法预测的基本最高可用频率月中值与根据垂直探测资料计算所得结果进行比较。
In this paper, we briefly introduce several long-term prediction methods for high-frequency communications, and compare the long-term forecast values of the high-frequency sky-wave field monthly mean with the measured values. The emphasis is on the "F_2 ionosphere method of prediction. For the 96 circuits in the area, the median monthly maximum of the maximum usable frequency predicted by the method is compared with the result calculated from the vertical detection data.