Title :
Performance comparison of detectors for perpendicular recording system
Author :
Seonghwan Kim ; Jun Lee ; Jaejin Lee
Author_Institution :
Dept. of Electron. Eng., Dongguk Univ., Seoul, South Korea
Abstract :
Summary form only given. In order to achieve a high-density perpendicular recording system, signal processing techniques are indispensable (J. Moon and L.R. Carley, IEEE Trans. Magn., vol. 26, no. 6, 1990). However, the performance of various detectors, except for the PRML system, is not fully evaluated at present. In this paper, the performances of detectors with d=1 constraint are investigated for perpendicular recording systems under the assumptions of nonlinear distortion, and their performance is discussed in terms of (1) equalizer mean squared error (MSE) and (2) noise power spectra at the discrimination point.
Keywords :
equalisers; magnetic heads; magnetic recording noise; magnetic sensors; maximum likelihood detection; mean square error methods; nonlinear distortion; partial response channels; perpendicular magnetic recording; PRML system; detector performance; discrimination point; equalizer mean squared error; high-density perpendicular recording system; noise power spectra; nonlinear distortion; perpendicular recording system detectors; signal processing techniques; AWGN; Additive white noise; Bit error rate; Detectors; Equalizers; Gaussian noise; Magnetic noise; Noise figure; Perpendicular magnetic recording; Signal to noise ratio;
Conference_Titel :
Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International
Conference_Location :
Amsterdam, The Netherlands
Print_ISBN :
0-7803-7365-0
DOI :
10.1109/INTMAG.2002.1001450
