Title :
ANFIS-based PRML system for read-out RF signal in DVD-ROM
Author :
Chen, Wen-Liang ; Chen, Chia-Chi ; Chen, Shing-Chia
Author_Institution :
Dept. of Power Mech. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
In DVD-ROMs, the way to equalize the read-out radio frequency (RF) signal to reduce the jitter ratio is an important issue. In this paper, we investigate the characteristics of the optical channel model in DVD-ROMs and propose an adaptive neuro-fuzzy inference system (ANFIS) based equalizer, together with a Viterbi detector to form as a partial-response maximum-likelihood (PRML) system for DVD-ROMs. The jitter performance using an ANFIS-based equalizer is compared with that of other linear filter-based equalizers. A computer simulation showed that the proposed equalization method has better jitter performance than conventional linear filter-based equalizers for the optical channel in DVD-ROMs
Keywords :
CD-ROMs; Viterbi detection; adaptive equalisers; adaptive systems; digital simulation; fuzzy neural nets; inference mechanisms; jitter; maximum likelihood estimation; nondestructive readout; performance evaluation; readout electronics; signal processing equipment; ANFIS-based PRML system; DVD-ROM; Viterbi detector; adaptive neuro-fuzzy inference system; computer simulation; jitter performance; jitter ratio; linear filter-based equalizers; optical channel model; partial-response maximum-likelihood system; readout RF signal equalization; Adaptive optics; Adaptive systems; DVD; Equalizers; Jitter; Nonlinear filters; Optical filters; RF signals; Radio frequency; Viterbi algorithm;
Conference_Titel :
IFSA World Congress and 20th NAFIPS International Conference, 2001. Joint 9th
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-7078-3
DOI :
10.1109/NAFIPS.2001.944726
