Performance Comparison of Longitudinal and Perpendicular Magnetic Recordings Using PRML Systems
Yoshihiro Okamoto, Y. Kondo, Hisashi Osawa, Y. Nakamura, Hideaki Muraoka, Y. Nakamura · Journal of the Magnetics Society of Japan · 2005
It is known that jitter-like noise in perpendicular magnetic recording system is large compared with longitudinal magnetic recording system. In this paper, the recording density and the amount of magnetic transition-jitter from the signal processing point of view are assumed to be same in both recording systems, and the performance comparison of GPRML systems are performed. It is clarified that the perpendicular magnetic recording system shows the good BER performance compared with the longitudinal magnetic recording system, and it has large allowance of magnetic transition-jitter.