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MEASUREMENT OF THE AMPLITUDE-PROBABILITY DISTRIBUTION AND THE THREE MOMENTS FOR ATMOSPHERIC NOISE
http://hdl.handle.net/2237/21998
http://hdl.handle.net/2237/219986bd75f0f-a4eb-4ef7-94c4-5bc96e4a2021
名前 / ファイル | ライセンス | アクション |
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proria_16_1.pdf (2.3 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-05-25 | |||||
タイトル | ||||||
タイトル | MEASUREMENT OF THE AMPLITUDE-PROBABILITY DISTRIBUTION AND THE THREE MOMENTS FOR ATMOSPHERIC NOISE | |||||
言語 | en | |||||
著者 |
NAKAI, Taketoshi
× NAKAI, Taketoshi× SAWAKATA, Kiyoshi |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
抄録 | ||||||
内容記述 | The performance of a modified pulse height analyzer (P.H.A) is described. It is capable of measuring the occurrence frequency of the sample-amplitude-heights which are evaluated by sampling a continuous waveform within a given time interval. A measuring method of the amplitude probability distributions (A. P. D'. s.) is described referring to the atmospheric radio noise, where a 80 dB dynamic range of amplitude variations can be measured without saturation. The procedure of deriving A.P.D.'s, the average voltage, R.M.S. voltage and antilogarithm of the average logarithmic voltage are discussed from the data of the occurrence frequency of sample-amplitude-height. The measurements of atmospheric radio noise were made using a 3-dB bandwidth of 1 KHz at 50 KHz at Toyokawa in the summer, 1967. All the A.P.D.'s obtained have been compared with a series of theoretical distributions, the parameter γ1, which determines the amplitude characteristics of the impulses at an antenna have been deduced as the result of the comparison. The agreement found between the measured and theoretical distributions γ1 are shown for six 4h time blocks of a day and for a whole day. Diurnal variations of the three moments and the associated quantities are described. The plotting of the value of 20 log10 (R.M.S. voltage/ antilogarithm of the average logarithmic voltage) versus the value of 20 log10 (R.M.S. voltage / average voltage) is given for a 3-dB bandwidth of 1 KHz. It has been found that the present case significantly differs from an well known case obtained for various bandwidths. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | The Research Institute of Atmospherics, Nagoya University | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0077-264X | |||||
書誌情報 |
en : Proceedings of the Research Institute of Atmospherics, Nagoya University 巻 16, p. 1-16, 発行日 1969-03-30 |
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著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/21998 | |||||
識別子タイプ | HDL |