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  1. F300 宇宙地球環境研究所
  2. F300b 紀要
  3. Proceedings of the Research Institute of Atmospherics, Nagoya University
  4. 16

MEASUREMENT OF THE AMPLITUDE-PROBABILITY DISTRIBUTION AND THE THREE MOMENTS FOR ATMOSPHERIC NOISE

http://hdl.handle.net/2237/21998
http://hdl.handle.net/2237/21998
6bd75f0f-a4eb-4ef7-94c4-5bc96e4a2021
名前 / ファイル ライセンス アクション
proria_16_1.pdf proria_16_1.pdf (2.3 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
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

WEKO 58655

en NAKAI, Taketoshi

Search repository
SAWAKATA, Kiyoshi

× SAWAKATA, Kiyoshi

WEKO 58656

en SAWAKATA, Kiyoshi

Search repository
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
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
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