Target design and low complexity signal detection for two-dimensional magnetic recording

Author

Matcha, Chaitanya Kumar ; Srinivasa, Shayan Garani

Author_Institution

Dept. of Electron. Syst. Eng., Indian Inst. of Sci., Bangalore, India

fYear

2014

fDate

9-12 Dec. 2014

Firstpage

1

Lastpage

10

Abstract

Partial response maximum likelihood (PRML) scheme is a well known technique to equalize the data read from ID magnetic recording channels. The PRML scheme uses a linear equalizer followed by a maximum likelihood (ML) detector. This paper is novel in addressing the following aspects: a) We propose two different methods to design separable and non-separable 2D PR targets that help in signal detection, b) We propose an extension of ID Viterbi detector for signal detection in 2D ISI channels. We use the detector to study the efficacy of PR targets designed for a particular choice of 2D ISI channel.

Keywords

Viterbi detection; magnetic recording; maximum likelihood detection; 2D ISI channel; linear equalizer; low complexity signal detection; magnetic recording channels; maximum likelihood detector; partial response maximum likelihood; target design; two-dimensional magnetic recording; Complexity theory; Detectors; Equalizers; Matrices; Signal detection; Vectors; Viterbi algorithm; 2D ISI; 2D Partial response target design; 2D SOVA detector; MMSE; Viterbi detector;

fLanguage

English

Publisher

ieee

Conference_Titel

Asia-Pacific Signal and Information Processing Association, 2014 Annual Summit and Conference (APSIPA)

Conference_Location

Siem Reap

Type

conf

DOI

10.1109/APSIPA.2014.7041724

Filename

7041724