起皱纹
发表于 2025-3-27 00:14:05
Prescription Analysis and Mining,hop, for example) by-taking measurements on the incoming wave. As an example of the complications which occur in practice on even such a simple communications path we will consider the results of measurements taken at Auckland on transmissions from Brisbane, a distance of 2,250 kilometres. These mea
cavity
发表于 2025-3-27 02:11:28
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轻触
发表于 2025-3-27 09:19:31
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superfluous
发表于 2025-3-27 12:47:01
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Eeg332
发表于 2025-3-27 15:57:11
Nonlinear variational inverse problems,m the long term mean bearing which, in the absence of systematic lateral tilts of the ionosphere, is along the great circle path. The problem to be considered is whether the effects of a large number of small random deviations can build up over a long path to give incoming directions which are signi
organism
发表于 2025-3-27 20:05:23
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固执点好
发表于 2025-3-28 00:07:04
Nancy L. Baker,Rolf H. Langland0 to 2100 GMT. Nevertheless, it is possible that some limits to this variation could be indicated by an investigation of the average behaviour over a long period. Such a series of results is presented in figs. 10.1, 10.2, 10.3 and 10.4. These figures show the relative number of times in particular b
不容置疑
发表于 2025-3-28 03:53:35
James A. Cummings,Ole Martin Smedstadn briefly a phenomenon which appears to be quite common in those cases of near-antipodal propagation with which we are concerned here. In very many instances, it has been noticed that the received bearing changes by a large angle in a very short time. Changes of 30 in 2–3 minutes are not uncommon. S
AORTA
发表于 2025-3-28 09:03:18
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大量
发表于 2025-3-28 13:57:22
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