Asynchronous LMS adaptive equalization

J.W.M. Bergmans; M.Y. Lin; D. Modrie; R. Otte

doi:10.1016/j.sigpro.2004.12.006

Asynchronous LMS adaptive equalization

J.W.M. Bergmans, M.Y. Lin, D. Modrie, R. Otte

Research output: Contribution to journal › Article › Academic › peer-review

9 Citations (Scopus)

Abstract

Digital data receivers often operate at a fixed sampling rate 1/Ts that is asynchronous to the baud rate 1/T. A digital equalizer that processes the incoming signal will also operate in the asynchronous clock domain. Existing adaptation techniques for this equalizer involve an error sequence ek that is produced in the synchronous clock domain, and converted to the asynchronous domain via an inverse sampling-rate converter. Several disadvantages of this approach may be avoided by means of an alternative topology that is developed and analyzed in this paper. Numerical results for an idealized optical storage channel serve to illustrate the merits of the approach.

Original language	English
Pages (from-to)	1301-1313
Number of pages	13
Journal	Signal Processing
Volume	85
Issue number	7
DOIs	https://doi.org/10.1016/j.sigpro.2004.12.006
Publication status	Published - 2005

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abstract = "Digital data receivers often operate at a fixed sampling rate 1/Ts that is asynchronous to the baud rate 1/T. A digital equalizer that processes the incoming signal will also operate in the asynchronous clock domain. Existing adaptation techniques for this equalizer involve an error sequence ek that is produced in the synchronous clock domain, and converted to the asynchronous domain via an inverse sampling-rate converter. Several disadvantages of this approach may be avoided by means of an alternative topology that is developed and analyzed in this paper. Numerical results for an idealized optical storage channel serve to illustrate the merits of the approach.",

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AU - Otte, R.

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N2 - Digital data receivers often operate at a fixed sampling rate 1/Ts that is asynchronous to the baud rate 1/T. A digital equalizer that processes the incoming signal will also operate in the asynchronous clock domain. Existing adaptation techniques for this equalizer involve an error sequence ek that is produced in the synchronous clock domain, and converted to the asynchronous domain via an inverse sampling-rate converter. Several disadvantages of this approach may be avoided by means of an alternative topology that is developed and analyzed in this paper. Numerical results for an idealized optical storage channel serve to illustrate the merits of the approach.

AB - Digital data receivers often operate at a fixed sampling rate 1/Ts that is asynchronous to the baud rate 1/T. A digital equalizer that processes the incoming signal will also operate in the asynchronous clock domain. Existing adaptation techniques for this equalizer involve an error sequence ek that is produced in the synchronous clock domain, and converted to the asynchronous domain via an inverse sampling-rate converter. Several disadvantages of this approach may be avoided by means of an alternative topology that is developed and analyzed in this paper. Numerical results for an idealized optical storage channel serve to illustrate the merits of the approach.

U2 - 10.1016/j.sigpro.2004.12.006

DO - 10.1016/j.sigpro.2004.12.006

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SN - 0165-1684

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SP - 1301

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JO - Signal Processing

JF - Signal Processing

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ER -

Asynchronous LMS adaptive equalization

Abstract

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