Title :
A two step detection scheme for high intersymbol interference
Author :
Oehme, W.F. ; Enk, K.
Author_Institution :
Dept. of Electr. Eng., Friedrich Alexander Univ., Erlangen, Germany
fDate :
3/1/1994 12:00:00 AM
Abstract :
The algorithm of a new two step detection scheme is described. The performance of the detection scheme has been evaluated by means of read signals from a prototype thin film disk drive with PW50/T greater than three. The detection procedure is divided in a first step which is bit-by-bit and a second step which is sequence oriented. Upper bounds for the error rates of the new detection scheme in the presence of system noise are estimated. The results show an improvement compared to peak detection of about 25% in recording density at an error rate of 10 -9
Keywords :
magnetic recording; high intersymbol interference; prototype thin film disk drive; read signals; recording density; two step detection scheme; Clocks; Decision feedback equalizers; Design engineering; Disk drives; Disk recording; Error analysis; Intersymbol interference; Prototypes; Transistors; Upper bound;
Journal_Title :
Magnetics, IEEE Transactions on
