Title :
Two-dimensional noise-predictive maximum likelihood method for magnetic recording channels
Author :
Matcha, Chaitanya Kumar ; Srinivasa, Shayan Garani ; Khatami, Seyed Mehrdad ; Vasic, Bane
Author_Institution :
Dept. of Electron. Syst. Eng., Indian Inst. of Sci., Bangalore, India
Abstract :
Noise-predictive maximum likelihood (NPML) is a well known signal detection technique used in partial response maximum likelihood (PRML) scheme in 1D magnetic recording channels. The noise samples colored by the partial response (PR) equalizer are predicted/whitened during the signal detection using a Viterbi detector. In this paper, we propose an extension of the NPML technique for signal detection in 2D ISI channels. The impact of noise prediction during signal detection is studied in PRML scheme for a particular choice of 2D ISI channel and PR targets.
Keywords :
Viterbi detection; equalisers; magnetic recording noise; maximum likelihood detection; partial response channels; 1D magnetic recording channels; 2D ISI channels; NPML; PRML; Viterbi detector; noise samples; partial response equalizer; partial response maximum likelihood; signal detection; two-dimensional noise-predictive maximum likelihood method; Detectors; Equalizers; Magnetic recording; Measurement; Noise; Prediction algorithms; Signal detection; 2D ISI; NPML; noise prediction; noise whitening;
Conference_Titel :
Information Theory and its Applications (ISITA), 2014 International Symposium on
Conference_Location :
Melbourne, VIC
