Title :
A robust digital timing recovery with asymmetry compensator for high speed optical drive systems
Author :
Ko, Seok Jun ; Kim, Pan Soo ; Choi, Hyung Jin ; Lee, Jae-Wook ; Lee, Junghyun
Author_Institution :
Sch. of Electr. & Comput. Eng., Sung Kyun Kwan Univ., Kyungki, South Korea
fDate :
11/1/2001 12:00:00 AM
Abstract :
This paper presents a new four-sampled zero crossing asymmetry compensation algorithm for high-speed DVD/CD applications. Simulations show 34% improvement of jitter performances, 50% reduction of compensation time and 2.0 dB gain of bit error rate (BER) compared with other algorithms. Simultaneously, a new digital timing recovery scheme for the optical drive system is presented. By comparative simulations using DVD patterns with marginal input conditions, the proposed timing recovery algorithm shows enhanced performances in jitter variance and SNR margin by 4 times and 3 dB respectively
Keywords :
compensation; disc drives; optical disc storage; signal sampling; synchronisation; timing jitter; BER; SNR margin; asymmetry compensator; bit error rate; digital timing recovery; four-sampled zero crossing asymmetry compensation; high speed optical drive; high-capacity digital data storage; high-speed CD; high-speed DVD; jitter performance; synchronization; Bit error rate; DVD; Detectors; Frequency synchronization; High speed optical techniques; Jitter; Optical receivers; Optical transmitters; Robustness; Timing;
Journal_Title :
Consumer Electronics, IEEE Transactions on
