清澈
发表于 2025-3-25 03:37:23
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Asymptomatic
发表于 2025-3-25 08:14:58
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Instinctive
发表于 2025-3-25 14:24:48
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改正
发表于 2025-3-25 19:00:21
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弄脏
发表于 2025-3-25 22:50:43
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中子
发表于 2025-3-26 00:43:56
Physical Problems of Particular Relevance to Arctic Communicationsd prediction techniques are not adequate and need revision. Specific requirements and means for improving communications in the region concerned are discussed. It is stressed that the possibility for utilizing anomalous ionization structures, such as E. and the high latitude trough, for sustaining p
adj忧郁的
发表于 2025-3-26 07:29:16
Some Aspects of the VLF OMEGA Navigation System as Appropriate to the Arctic Environmentwide basis. The areas of the world most likely to give the most variable position lines are those of high latitudes where ionospheric disturbances are most frequent. While ionospheric disturbances, such as those associated with solar proton events, can seriously affect navigation where highly accura
使成波状
发表于 2025-3-26 12:00:39
Periodic Fading of VLF Signals Received over a Polar Path During Sunset and Sunrise cycle slippage. From the data it is concluded that by night the first and second order modes have almost exactly the same attenuation and a phase velocity difference of 0.51%, which is in agreement with Wait and Spies’ calculations for a nighttime ionosphere of height 90 km and a lower waveguide bo
Alveolar-Bone
发表于 2025-3-26 15:25:36
Discussions of VLF Records Obtained During Polar Cap Absorption and Auroral Disturbancese phase of the VLF waves changes the signal will alter its frequency. In a navigation system based on VLF transmissions these changes in the propagation time must be taken into account..In this paper the influence of high latitude disturbances on VLF propagation, based on measurements carried out at
labile
发表于 2025-3-26 17:33:27
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