標題: Titlebook: Effects of Ionospheric Scattering on Very-Long-Distance Radio Communication; H. A. Whale Book 1969 Springer Science+Business Media New Yor [打印本頁] 作者: 氣泡 時間: 2025-3-21 19:09
書目名稱Effects of Ionospheric Scattering on Very-Long-Distance Radio Communication影響因子(影響力)
書目名稱Effects of Ionospheric Scattering on Very-Long-Distance Radio Communication影響因子(影響力)學科排名
書目名稱Effects of Ionospheric Scattering on Very-Long-Distance Radio Communication網絡公開度
書目名稱Effects of Ionospheric Scattering on Very-Long-Distance Radio Communication網絡公開度學科排名
書目名稱Effects of Ionospheric Scattering on Very-Long-Distance Radio Communication被引頻次
書目名稱Effects of Ionospheric Scattering on Very-Long-Distance Radio Communication被引頻次學科排名
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書目名稱Effects of Ionospheric Scattering on Very-Long-Distance Radio Communication讀者反饋
書目名稱Effects of Ionospheric Scattering on Very-Long-Distance Radio Communication讀者反饋學科排名
作者: Enzyme 時間: 2025-3-21 22:57 作者: Commonplace 時間: 2025-3-22 02:44
Measurements on a Short Path,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作者: chastise 時間: 2025-3-22 06:33 作者: 合唱隊 時間: 2025-3-22 11:52 作者: Contort 時間: 2025-3-22 14:48 作者: Contort 時間: 2025-3-22 18:20 作者: 游行 時間: 2025-3-22 23:11
Location of the Absorbing Parts of the Auroral Regions,oles. The position of the line of maximum aurora, when measured at a fixed location, appears to move N and S during a 24 hour period, being furthermost from the equator at midday. From these well-known observations, it seems probable that the auroral region, of some relatively stable shape, pivots a作者: 言行自由 時間: 2025-3-23 01:28
Seasonal Variations in Direction of Arrival,0 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作者: Resistance 時間: 2025-3-23 08:03
Sudden Bearing Changes,n 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作者: 向外供接觸 時間: 2025-3-23 09:41 作者: 口訣 時間: 2025-3-23 14:43 作者: Ointment 時間: 2025-3-23 19:52
Relations Between the Bearing and the Amplitude,ne wave through the ionosphere. Under the conditions in which we are most interested here, i.e. long-distance radio propagation, many encounters with the ionosphere will have occurred. Although none of these will be a passage right through the ionosphere, most being a double passage at an oblique an作者: freight 時間: 2025-3-23 22:40 作者: 猛然一拉 時間: 2025-3-24 05:43 作者: GORGE 時間: 2025-3-24 07:17 作者: 有害 時間: 2025-3-24 13:48 作者: CT-angiography 時間: 2025-3-24 15:04 作者: vascular 時間: 2025-3-24 20:53 作者: 極少 時間: 2025-3-25 01:12
Angular Spread of Waves,re now considering is a little different from that considered in chapter 7 where the rough ionospheric and earth reflections gave rise to the day-to-day wandering of the rays. We are now concerned with the “instantaneous” picture i.e. the actual spread of power at some particular time.作者: ENDOW 時間: 2025-3-25 05:57
https://doi.org/10.1007/978-1-4899-6545-5communication; distance; scattering作者: Pantry 時間: 2025-3-25 09:56 作者: 英寸 時間: 2025-3-25 12:04
Sampling strategies for the EnKF,The general theory which has been presented above takes no account of highly absorbing regions.作者: 起皺紋 時間: 2025-3-25 19:13 作者: MURAL 時間: 2025-3-25 20:46
http://image.papertrans.cn/e/image/302861.jpg作者: 好色 時間: 2025-3-26 00:58
Overview: 978-1-4899-6254-6978-1-4899-6545-5作者: 改良 時間: 2025-3-26 05:03 作者: 無底 時間: 2025-3-26 10:27 作者: glomeruli 時間: 2025-3-26 16:14 作者: fastness 時間: 2025-3-26 18:20 作者: 起皺紋 時間: 2025-3-27 00:14
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作者: cavity 時間: 2025-3-27 02:11 作者: 輕觸 時間: 2025-3-27 09:19 作者: superfluous 時間: 2025-3-27 12:47 作者: Eeg332 時間: 2025-3-27 15:57
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作者: organism 時間: 2025-3-27 20:05 作者: 固執(zhí)點好 時間: 2025-3-28 00:07
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作者: 不容置疑 時間: 2025-3-28 03:53
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作者: AORTA 時間: 2025-3-28 09:03 作者: 大量 時間: 2025-3-28 13:57 作者: hangdog 時間: 2025-3-28 16:53 作者: EWER 時間: 2025-3-28 20:18 作者: 胖人手藝好 時間: 2025-3-29 00:06
https://doi.org/10.1007/978-981-16-9368-7tillations at any place, it is not easily obtained from measurements of these phenomena. As an example of this, consider the fluctuations of the amplitude of a received wave. The expected statistical distribution can be obtained either by a direct calculation . or from fig. 14.3. In this figure the 作者: expdient 時間: 2025-3-29 03:32
Johannes Hoogeveen,Andre-Marie Taptuée often associated with changes of the amplitude of the signals i.e. with the signal strength. In analogy to this effect, the angular spreading of waves as they propagate round the earth leads to effects of the strength of the received waves. For example, in the study of day-to-day bearing deviation作者: palliate 時間: 2025-3-29 07:28 作者: 我沒有強迫 時間: 2025-3-29 12:48
Data Communications and Network Technologiesnt left. This remaining energy has not been scattered and thus it will always travel on a great circle path and will all pass through the point antipodal to the transmitter; the idealized type of antipodal focussing which was discussed in the first part of chapter 17 will occur there. In any practic作者: MULTI 時間: 2025-3-29 16:23 作者: 本能 時間: 2025-3-29 22:07 作者: 公社 時間: 2025-3-30 00:20 作者: Acclaim 時間: 2025-3-30 04:18
https://doi.org/10.1007/978-3-030-63139-0s. A series of such results obtained during 1953 – 1954 is shown in fig. 6.1. These measurements were made at Auckland using transmissions from two stations located one in Fiji (ZQD) and the other at Brisbane, Australia(VLQ9).作者: 離開 時間: 2025-3-30 08:35 作者: 投票 時間: 2025-3-30 14:56
The Short-Term Characteristics of the Received Wave (Scintillations),rious component waves. All such effects, which include the rapid fading of the amplitude of the signal and the rapid fluctuations of the wave-normal direction in both the horizontal (bearing) and vertical planes are classed together as scintillation effects.作者: 得體 時間: 2025-3-30 18:31 作者: GROSS 時間: 2025-3-30 21:41 作者: 座右銘 時間: 2025-3-31 03:29
Regular Deviations from Great Circle Paths,s. A series of such results obtained during 1953 – 1954 is shown in fig. 6.1. These measurements were made at Auckland using transmissions from two stations located one in Fiji (ZQD) and the other at Brisbane, Australia(VLQ9).作者: 細胞 時間: 2025-3-31 06:27 作者: 羽毛長成 時間: 2025-3-31 09:19 作者: 傻 時間: 2025-3-31 17:16 作者: 公式 時間: 2025-3-31 21:19 作者: adduction 時間: 2025-4-1 01:05
James A. Cummings,Ole Martin Smedstadhe time scale increases vertically in fig. 11.1). It is probable that these changes are associated with transmission through the auroral region in that they seem to indicate propagation “around” either one edge or another of an absorbing stop.作者: 精確 時間: 2025-4-1 03:56 作者: asthma 時間: 2025-4-1 07:33 作者: 阻擋 時間: 2025-4-1 11:00
Introduction, portions of the path may not present a very serious obstacle to obtaining a reasonable estimate of the behaviour of radio waves in traversing it because some idea of the properties of the unknown regions may be obtained by interpolating between those regions where the characteristics of the ionosphere are known.作者: 不法行為 時間: 2025-4-1 16:20 作者: somnambulism 時間: 2025-4-1 18:48
,Spherical Earth Propagation — The Idealized Case,surface of the earth is called a . We need not consider the actual hops at this stage but merely note that the projection of the path on to the surface of the earth (the “trace” of the path) is a great circle.
