Title :
Tracking error detection method for novel multi-level discs
Author :
Zhang, Long ; Ni, Guoqiang ; Pei, Jing ; Yan, Mingming
Author_Institution :
Sch. of Optoelectron., Beijing Inst. of Technol., Beijing, China
Abstract :
Signal waveform modulation is a novel multi-level method and can achieve higher recording density than the amplitude multi-level modulation. Affected by multi-level modulation, the tracking error signal generated by the conventional differential phase detection (DPD) method deteriorates in the signal waveform modulation multi-level (SWML) disc. In the paper, a new tracking error signal detection method called the amplitude-sampling DPD (AS-DPD) method is proposed. The experimental results show that the characteristics of the tracking error signal generated by the AS-DPD method are better than that of the DPD signal in the SWML disc.
Keywords :
amplitude modulation; error detection; optical disc storage; signal detection; waveform analysis; amplitude multi-level modulation; amplitude-sampling DPD; differential phase detection method; novel multi-level discs; recording density; signal waveform modulation multi-level disc; tracking error detection; tracking error signal; Adaptive optics; DVD; Field programmable gate arrays; Modulation; RF signals; Servomotors; Signal detection; multi-level; signal waveform modulation; tracking error signal; tracking servo;
Conference_Titel :
Electric Information and Control Engineering (ICEICE), 2011 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-8036-4
DOI :
10.1109/ICEICE.2011.5778311
