A Novel Method to Restrain the Radial Error Propagation in Self-servowriting in Hard Disk
In this paper, the process of self-servowriting and the problem that is critical to self-servowriting are discussed. When writing servo burst information the errors coming from the last track can be inherited to next track. This can prevent the propagation of servo information to all tracks on the disk. A novel method is proposed for error containment based on feedforward compensation. It adds a correction signal to the servo loop to eliminate the errors of last track. Its effectiveness is proved in theory and in simulation test.
self-servowriting servo burst information error containment feedforward compensation
Xiaogang Zhao Changsheng Xie Haiwei Wang
Department of Optoelectronics Information Storage, Wuhan National Laboratory for Optoelectronics, Wuhan Hubei, P.R.China, 430074
国际会议
2007 IEEE International Conference on Automation and Lofistics
山东济南
英文
2007-08-18（万方平台首次上网日期，不代表论文的发表时间）