Title :
Evaluation of Servo Patterns for Perpendicular Recording
Author :
Zhang, Songhua ; Wong, Wai Ee
Author_Institution :
Data Storage Inst., A*STAR
fDate :
Nov. 29 2006-Dec. 1 2006
Abstract :
Position error signal (PES) plays a crucial role in hard disk drives by providing the position information of the read head to the servo controller. In this paper, we examine the performance of PES from different servo patterns for high density perpendicular recording system using microtrack simulation. The results reveal certain impacts of perpendicular recording on servo pattern design and provide references on PES signal generation and decoding method design for future hard disk drives (HDD) based on perpendicular recording technology.
Keywords :
decoding; disc drives; hard discs; magnetic heads; perpendicular magnetic recording; servomechanisms; PES; decoding method; hard disk drives; microtrack simulation; perpendicular recording system; position error signal; read head; servo controller; servo patterns design; signal generation; Decoding; Demodulation; Frequency; Hard disks; Magnetic heads; Magnetization; Perpendicular magnetic recording; Servomechanisms; Signal design; Signal generators; perpendicular magnetic recording; position error signal; servo system;
Conference_Titel :
Asia-Pacific Magnetic Recording Conference, 2006
Conference_Location :
Singapore
Print_ISBN :
1-4244-0863-6
DOI :
10.1109/APMRC.2006.365936
