Non-linear identification on the digital magnetic recording channel

The authors describe a method for identifying the digital magnetic recording channel in which data dependent nonlinear effects are present. The method can be extended to any discrete-input, discrete-time channel with finite memory. The channel is considered as a finite state machine or lookup table,...

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Bibliographic Details
Published in[1991] Conference Record of the Twenty-Fifth Asilomar Conference on Signals, Systems & Computers pp. 6 - 10 vol.1
Main Authors Sands, N.P., Cioffi, J.M.
Format Conference Proceeding
LanguageEnglish
Published IEEE Comput. Soc. Press 1991
Subjects
Adaptation model
Automata
Digital magnetic recording
Information systems
Kernel
Laboratories
Magnetic recording
Maximum likelihood detection
Prototypes
Table lookup
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Summary:The authors describe a method for identifying the digital magnetic recording channel in which data dependent nonlinear effects are present. The method can be extended to any discrete-input, discrete-time channel with finite memory. The channel is considered as a finite state machine or lookup table, in which the number of states is related to the memory length of the channel. The model parameters are derived by using linear least-squares estimation or by adaptation of the model to minimize mean-squared error. A simple linear transformation is used to convert the finite state machine outputs to the coefficients of a Volterra series model. The results of the channel identification process are shown.< >
ISBN:9780818624704
0818624701
ISSN:1058-6393
2576-2303
DOI:10.1109/ACSSC.1991.186404