NDLI: Performance comparison of detection methods in magnetic recording

Content Provider	IEEE Xplore Digital Library
Author	Moon, J. Carley, L.R.
Copyright Year	1965
Abstract	Various detection schemes suitable for magnetic recording are compared in terms of their effective signal-to-noise ratios. It is shown that at high densities the performance of conventional detectors such as a peak detector, a threshold detector with partial response equalization, a decision feedback equalizer, and a Viterbi algorithm detector tuned to a linearly truncated channel fall far below the optimum performance that can be achieved by the maximum-likelihood sequence detector (MLSD). It is shown that while implementing the full MLSD is clearly out of the question for high densities with severe intersymbol interference (ISI), there exists an efficient detection scheme which achieves an excellent compromise between hardware complexity and detection performance. This scheme, which is called the fixed-delay tree search with decision feedback, combines a fast and efficient tree-search algorithm with a decision feedback equalizer to cancel out a portion of ISI without noise enhancement. It is well suited for run-length-limited systems and attains performance close to that of MLSD while maintaining reasonable implementation cost and processing requirements.<>
Sponsorship	IEEE Magnetics Society
Starting Page	3155
Ending Page	3172
Page Count	18
File Size	1804984
File Format	PDF
ISSN	00189464
Volume Number	26
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic recording Detectors Decision feedback equalizers Intersymbol interference Signal to noise ratio Viterbi algorithm Maximum likelihood detection Hardware Noise cancellation Costs
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Detection Methods for Holographic Data Storage

Improvements in detectors based upon colored noise

Dual decision feedback equalizer

Performance comparison of modified multilevel decision feedback equalization detectors

On the performance and implementation of adaptive PRML

Design of multilevel decision feedback equalizers

Performance of digital magnetic recording with equalization and offtrack interference

Comparison of computationally efficient forms of FDTS/DF against PR4-ML

Finite delay maximum SNR breadth-first equalizer

Performance comparison of detection methods in magnetic recording

Similar Documents

Detection Methods for Holographic Data Storage

Improvements in detectors based upon colored noise

Dual decision feedback equalizer

Performance comparison of modified multilevel decision feedback equalization detectors

On the performance and implementation of adaptive PRML

Design of multilevel decision feedback equalizers

Performance of digital magnetic recording with equalization and offtrack interference

Comparison of computationally efficient forms of FDTS/DF against PR4-ML

Finite delay maximum SNR breadth-first equalizer

Performance comparison of detection methods in magnetic recording