P-D TRANSFER WITH TILTED IONOSPHERE AND PREDICTION OF MUF
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摘要: 本文提出了计及电离层倾斜的高频返回散射电离图的最小时延换算为大圆距离的计算方法,并讨论利用返回散射电离图进行最高可用频率预报。在D>1000km条件下,P-D变换的最大误差在3.5%以内,实时预报结果与CCIR提供的频率预报的月平均值相差±1.5MHZ.Abstract: This paper presents a method to transfer the minimum time-delay on backscatter ionogram into the earth's distance with ionospheric tilt considered;and discusses MUF prediction by use of backscatter ionogram.Under D>1000km,the maximum error of the P-D transfer is ≤ 3.5%; the difference between CCIR and the result of this paper are±1.5 MHz.
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Key words:
- HF backscatter /
- Ionospheric tilt /
- P-D transfer /
- MUF prediction
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