Title :
Maximum-likelihood detection for information channels with colored noise
Author_Institution :
Dept. 2, Sony Corp., Japan
Abstract :
In data storage systems, information channels have generally two different noise origins: system noise and media noise; and total noise contained in a playback signal is not necessarily white noise. Therefore, conventional partial-response maximum-likelihood (PRML) detection methods are not optimal for data storage systems. We developed a new detection method suitable for colored noise channels and obtained better performance than with the conventional method. In this paper, we report the mechanism of the new method and the experimental results of its performance.
Keywords :
error statistics; maximum likelihood detection; noise; optical disc storage; partial response channels; PRML detection; bit error rates; channel noise origins; colored noise information channels; data storage systems; media noise; optical disc storage applications; partial-response maximum-likelihood detection methods; playback signal total noise; system noise; white noise; AWGN; Additive white noise; Colored noise; Data storage systems; Gaussian noise; Low-frequency noise; Maximum likelihood detection; Noise figure; Optical noise; White noise;
Conference_Titel :
Optical Memory and Optical Data Storage Topical Meeting, 2002. International Symposium on
Print_ISBN :
0-7803-7379-0
DOI :
10.1109/OMODS.2002.1028700
