A study on modeling of the writing process and two-dimensional neural network equalization for two-dimensional magnetic recording

作者：Yamashita Masato^*; Okamoto Yoshihiro; Nakamura Yasuaki; Osawa Hisashi; Miura Kenji; Greaves S; Aoi H; Kanai Y; Muraoka Hiroaki

来源：Journal of Applied Physics, 2012, 111(7): 07B727.

DOI：10.1063/1.3680535

A simple writing process considering magnetic clusters due to exchange coupling between grains is studied for two-dimensional magnetic recording. The bit error rate (BER) performance of a low-density parity-check coding and iterative decoding system with a two-dimensional neural network equalizer (2D-NNE) that can diminish the influences of jitter-like medium noise and inter-track interference is obtained using a read/write channel model based on the proposed writing process, and it is compared with those for one-and two-dimensional finite impulse response equalizers (FIREs). It is clarified that the BER performance for the 2D-NNE is far superior to those for the FIREs.

• 出版日期2012-4-1