A NEW EQUALIZING EXPERIMENT APPLYING TO PERPENDICULAR DIGITAL VCR USING FFT ANALYSIS

Authors
KAMIJO K TAGUCHI R MIYASHITA E NUMAZAWA J
Citation
K. Kamijo et al., A NEW EQUALIZING EXPERIMENT APPLYING TO PERPENDICULAR DIGITAL VCR USING FFT ANALYSIS, IEEE transactions on magnetics, 34(4), 1998, pp. 1985-1987
Citations number
5
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
34
Issue
4
Year of publication
1998
Part
1
Pages
1985 - 1987
Database
ISI
SICI code
0018-9464(1998)34:4<1985:ANEEAT>2.0.ZU;2-#
Abstract
A new method of measuring the transfer function in a magnetic recordin g channel using FFT (Fast Fourier Tramnsform)analysis has been develop ed. Based on the transfer function, we have made a practical equalizer with simple RC (Resistor-Capacitor) circuits to equalize a reproduced signal in a perpendicular magnetic recording channel with ring heads into a waveform that satisfies Nyquist's first criterion. Applying the equalizer to an experimental perpendicular VCR, we have successfully demonstrated a VCR with a byte error rate of 1x10(-5) and a recording bit area of 0.9 mu m(2)/bit.