A reliable soft-output of autoregressive ML detector for perpendicular magnetic recording with intertrack interference

Author

Harada, Kohsuke ; Uchikawa, Hironori

Author_Institution

Corp. Res. & Dev. Center, Toshiba Corp., Kawasaki

fYear

2008

fDate

7-10 Dec. 2008

Firstpage

1

Lastpage

6

Abstract

In this paper, we consider a behavior of an autoregressive maximum-likelihood (ARML) detector and that of a conventional partial-response ML (PRML) detector against intertrack interference (ITI) of a perpendicular magnetic recording. Based on the consideration, we propose a calculation of a branch metric with the ITI estimation for the ARML detector, And also, we explain that the performance of the ARML detector is sensitive to the ITI. Finally, we show that our proposed ARML detector can derive a better performance against the ITI.

Keywords

autoregressive processes; intersymbol interference; maximum likelihood detection; perpendicular magnetic recording; ARML detector; ITI estimation; autoregressive maximum-likelihood detector; intersymbol-and-intertrack interference; partial-response ML; perpendicular magnetic recording; reliable soft-output; Detectors; Error correction codes; Interference; Magnetic heads; Magnetic noise; Magnetic recording; Maximum likelihood detection; Maximum likelihood estimation; Parity check codes; Perpendicular magnetic recording;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory and Its Applications, 2008. ISITA 2008. International Symposium on

Conference_Location

Auckland

Print_ISBN

978-1-4244-2068-1

Electronic_ISBN

978-1-4244-2069-8

Type

conf

DOI

10.1109/ISITA.2008.4895392

Filename

4895392