atrophy
发表于 2025-3-25 04:11:39
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不感兴趣
发表于 2025-3-25 11:32:09
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SAGE
发表于 2025-3-25 11:58:10
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上坡
发表于 2025-3-25 16:01:41
Ionospheric Modification by High Power Radio Waves “unwanted signal,” p = 200kW, f = 250 kHz) on top of the “wanted” signal-Radio Beromiinster — at 650 kHz. Tellegin correctly interpreted this observation as the interaction of the two signals in the ionosphere.
唠叨
发表于 2025-3-25 20:35:40
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美丽的写
发表于 2025-3-26 03:10:33
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Commodious
发表于 2025-3-26 06:44:24
0079-1938 n employed to investigate the terrestrial ionosphere. The purposes of this book are to exam ine the basic physical interaction process of radio waves with the ionosphere, scrutinize each of the radio techniques currently in use, and describe the elements of each technique, as well as assess their c
迁移
发表于 2025-3-26 11:56:20
Terrestrial Atmospheric Structure and Properties of Electromagnetic Wavesic structure and composition, electrical noise, fundamental properties of electromagnetic waves, and the radar equation, in that order. A logical starting point, then, seems to be a short discussion of the electromagnetic spectrum in general and that particular region of the spectrum employed for io
短程旅游
发表于 2025-3-26 16:15:26
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反复拉紧
发表于 2025-3-26 17:23:57
Vertical Sounders — the Ionosondeeceiver located from 65 to 130 km distant from the transmitter. The ground wave and the skywave arrived at the receiver with a relative phase difference. When the frequency of the transmitter and the receiver were simultaneously and rapidly changed by a small amount, the investigators obtained maxim