The major advantage of PR-IV channel modeling on high-density magnetic recording systems is that the maximum-likelihood sequence detector (MLSD) with optimal performance can be used. However, the MLSD has a complex structure and a high cost. Another detection method is the three-level detector (TLD). Its structure is simpler than the MLSD's, but its performance is extremely poor. Sometimes it is necessary to use a detection method that has a simpler structure than the MLSD, yet performs competitively. In this paper, a new detection scheme called an error-controlled detection (ECD), is proposed for PR-IV systems. Its hardware complexity is greatly reduced and the performance is competitive with the MLSD.
Bibliographical noteFunding Information:
Manuscript received February 1, 1997. y. H. Kim, 82-2-405-1687, fax 82.2-405-1558, e-mail kyhwan@tele- comm.samsung.co.kr, C. W. YOU, 82-2-361-2865; D. S. Hong, 82-2-361-287 1, fax 82-2-361-4887, e-mail firstname.lastname@example.org. This work was supported in part by a research grant of the university supporting program from the Ministry of Information and Communication of Republic of Korea.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering