Helical scan tape recording with MLSE at 3600 bit/mm

Author

Oehme, W.F. ; Obernosterer, F. ; Plankenbühler, R.

Author_Institution

Dept. of Electr. Eng., Friedrich Alexander Univ., Erlangen, Germany

Volume

29

Issue

6

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

4039

Lastpage

4041

Abstract

A modified helical scan tape recorder was used for experimental digital recording. Demodulation was carried out using MLSE (maximum-likelihood sequence-estimation) with the Viterbi algorithm. Clock recovery is included in the estimation algorithm. A recording density of 3600 bit/mm was reached with low error frequency. The most important parameters were sampling frequency for the clock recovery and quantizing resolution for the decision process. Pulse interference width and path memory depth were investigated

Keywords

demodulation; magnetic recording; maximum likelihood estimation; video recording; video tape recorders; MLSE; VHS recorder; Viterbi algorithm; clock recovery; decision process; demodulation; digital recording; error frequency; estimation algorithm; helical scan tape recorder; maximum-likelihood sequence-estimation; path memory depth; pulse interference; recording density; resolution quantisation; sampling frequency; Clocks; Demodulation; Frequency; Interference; Magnetic recording; Maximum likelihood detection; Maximum likelihood estimation; Sampling methods; Space vector pulse width modulation; Viterbi algorithm;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.281383

Filename

281383