Spectral shaping for peak detection equalization

Author

Thapar, H.K. ; Sands, N.P. ; Abbott, W.L. ; Cioffi, J.M.

Author_Institution

IBM Corp., San Jose, CA, USA

Volume

26

Issue

5

fYear

1990

fDate

9/1/1990 12:00:00 AM

Firstpage

2309

Lastpage

2311

Abstract

The authors describe an analytic approach to equalizer design for the peak-detection method based on equalizing the readback signal to a specific target signal whose choice depends upon the recording density. Suitable target signals are specified in the time and the frequency domain. The spectral shaping of the equalized channel is specified in terms of minimum bandwidth dibit or transition-response signals. The specification allows the use of computer-aided methods to determine the equalizer parameters. The application of the method to disk-drive systems in which the readback signal varies with radial position is also discussed

Keywords

error statistics; hard discs; magnetic recording; analytic approach; disk-drive systems; equalizer design; frequency domain; minimum bandwidth dibit; peak-detection method; readback signal; recording density; spectral shaping; target signal; transition-response signals; Clocks; Design methodology; Disk drives; Equalizers; Error analysis; Intersymbol interference; Noise level; Signal analysis; Signal design; Signal to noise ratio;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.104706

Filename

104706