(d, k/T) Constrained Partial Response Maximum Likelihood Codes
A new set of constrained codes, referred to as (d, k/l) constrained partial response maximum likelihood (PRML) codes, is proposed. These new constrained codes combine the benefits of both (d, k) run length limited codes and (0, k/l) PRML codes, with seemingly promising applications in PRML read channels for today's head/media combinations, using thin-film media and inductive read heads. The rules for generating any (d, k/l) code are presented, the Shannon capacity is tabulated for the codes of practical interest with d= 1 and 2, and the encoding finite state transition diagram and state-independent decoder are designed for a rate 1/2, (1, 7/6) code. Some differences among (d, k) codes, (0, k/l) codes, (0, k/l/M) codes and (d, k/l) codes are also addressed.
CODING theory, DECODERS (Electronics)
Computer Sciences | Information Security
Information Security and Trust
International Journal of Electronics
Taylor and Francis
LI, Y. X.; Subrahmanyam, J.; and DENG, Robert H..
(d, k/T) Constrained Partial Response Maximum Likelihood Codes. (1995). International Journal of Electronics. 78, (1), 19-24. Research Collection School Of Information Systems.
Available at: http://ink.library.smu.edu.sg/sis_research/162