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フルテキストURLKJ00000156805.pdf ( 556.3KB ) 公開日 2010-04-19
タイトル塗布形磁気テープの変調性媒体雑音
タイトルヨミトフガタ ジキ テープ ノ ヘンチョウセイ バイタイ ザツオン
タイトル別表記Modulation Noise in Particulate Magnetic Tapes
作成者西川, 正明
桐原, 昭雄
羽野, 光夫
作成者ヨミニシカワ, マサアキ
キリハラ, アキオ
ハノ, ミツオ
作成者別表記Nishikawa, Masaaki
Kirihara, Akio
Hano, Mitsuo
作成者所属山口大学工学部
内容記述(抄録等)The properties of medium noise in magnetic recording are usually evaluated by using various different terms; namely, bulk erased noise, AC-biased noise, DC-magnetized noise and recorded signal noise. These evaluated medium noise, however, can be arranged by combining two elemental components. One is the random component which is originated from the rerecording phenomenon of bulk erased noise and the other is the modulated component resulted from bulky irregularities of the medium. The purpose of this paper is to present several data about the later component, the modulation noise, and to investigate the origins of this noise component. Modulation noise is not included in bulk erased noise or AC-biased noise but is included in DC-magnetized noise and recorded signal noise. In DC-magnetized noise, the modulation noise component yields a peculiar transformation of its noise spectrum in the lower frequency region; on the other hand, it produces a side band spectrum skirt beside the signal in the recorded signal noise spectrum. The magnitude of modulation noise takes a maximam at the unsaturated region of a medium and then it gradually decreases with increasing magnetizing level. The roughness of the medium surface and the clustering of magnetic perticles in the coating layer are considered to be the origins of moduration noise; however, as for recent magnetic tapes, the later term seems to be the main origin of the modulation noise.
本文言語jpn
主題電気電子工学
資料タイプtext
ファイル形式application/pdf
出版者山口大学工学部
出版者ヨミヤマグチ ダイガク コウガクブ
NII資料タイプ紀要論文
ISSN0372-7661
NCIDAN00244228
学内刊行物(紀要等)山口大学工学部研究報告
掲載誌名山口大学工学部研究報告
掲載誌名別表記Memoirs of the Faculty of Engineering, Yamaguchi University
40
2
開始ページ419
終了ページ424
発行日1990-03
著者版/出版社版出版社版
備考本文データは国立情報学研究所において電子化したものである
リポジトリIDKJ00000156805
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/KJ00000156805