Degradation of recording performance in high-speed recording

被引：1
|
作者：
Ikekame, H [1 ]
Yamashita, T
Ide, H
Takano, K
Nishiyama, N
Tsuyoshi, T
Shiroishi, Y
Aoi, H
机构：
[1] Hitachi Ltd, Cent Res Lab, Kokubunji, Tokyo 1858601, Japan
[2] Hitachi Ltd, Data Storage & Retrieval Syst Div, Kanagawa 2568510, Japan
来源：
IEEE TRANSACTIONS ON MAGNETICS | 1999年 / 35卷 / 05期
关键词：
high speed recording; medium velocity; recording frequency; nonlinear transition shift; overwrite; rise time; dynamic coercivity;
D O I：
10.1109/20.800792
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Effects of dynamic coercivity on recording performance at write frequencies of 10-250 MHz and medium velocity of 20-50 m/s were investigated, It was found that degradation of signal-to-noise-ratio and roll-off characteristics in high speed recording is extremely small. And degradation of nonlinear transition shift Is mainly due to the rise time of the magnetic field in the write head. Moreover, overwrite characteristics degrade significantly because of dynamic coercivity effects.
引用
收藏
页码：2259 / 2261
页数：3
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