Title :
Error-event detection codes for partial response channels
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
With an annual increase in density of 100% approaching superparamagnetic limits much stronger error control systems are required in read channels for hard drives. A technique is presented for correcting long errors that are the result of highly colored noise typical for modern magnetic heads and media. We introduce a sofic system-based construction of very high rate codes for correcting errors from a given list, and demonstrate a substantial SNR gain when these codes are used in a scheme that combines the error event detection and the list soft decoding
Keywords :
decoding; error correction codes; error detection codes; hard discs; magnetic heads; partial response channels; superparamagnetism; SNR gain; error control systems; error correcting codes; error event detection; hard drives; highly colored noise; long errors; magnetic heads; magnetic media; partial response channels; read channels; sofic system-based construction; soft decoding; superparamagnetic limits; very high rate codes; Colored noise; Error correction; Error correction codes; Event detection; Magnetic domains; Maximum likelihood decoding; Maximum likelihood detection; Parity check codes; Partial response channels; Signal to noise ratio;
Conference_Titel :
Telecommunications in Modern Satellite, Cable and Broadcasting Service, 2001. TELSIKS 2001. 5th International Conference on
Conference_Location :
Nis
Print_ISBN :
0-7803-7228-X
DOI :
10.1109/TELSKS.2001.955838
